Henry

gimme a side of what physical science is. I know there's no shortcuts but it means alot of ev'rything I gotta know. Sho' me. I have little understanding of what you wrote. When one tries to communicate in non-standard English, the results are unpredictabl...

20 years ago

any type'a study to work on this stuff? I just need to memorize it in order 2 get it 'cuz I don't forget and not answer it correctly. any type'a study to work on this stuff? I just need to memorize it in order 2 get it 'cuz I don't forget and not answer i...

20 years ago

Variables that are always different between the experimental and the control groups are? a.)independent b.) controlled c.) dependent d.) a and c

18 years ago

Hello, does "partage" mean share in english.

17 years ago

Discuss the advantages/disadvantages of using chemically synthesized esters in place of natural esters in food. Support your opinion with references.

17 years ago

What is a good moral to compare Odysseus and Gilgamesh. Please I looked everywhere but I can't find one.

17 years ago

A 3:1 ratio of tall to short plants in the F2 generation lends support to the principle of ________________.

17 years ago

(-2.7)^0

17 years ago

simplify the radical expression by rationalizing the denominator. 4/*21 * means square root

17 years ago

what rich american owned most of the oil rights in america?

17 years ago

What is 88divided by 2 then multiplied by 33 plus 7-18 multiplied by 3?

16 years ago

"How many different equivalent expressions for a particular number can be found?" Various constraints can be (and need to be) applied, such as the use of integers only, the number of expressions listed, a restricted choice of digits, or operations etc. Li...

16 years ago

How would the U.S. look today if the Anti-Federalists had prevailed?

16 years ago

A road sign at the top of a mountain indicates that for the next 4 miles the grade is 12%. Find the angle of the grade and the change in elevation for a car descending the mountain.

16 years ago

A rope is tied to a pail of water and the pail is swung in a vertical circle of radius 1.3m. What must be the minimum velocity of the pail at the highest point of the circle if no water is to spill?

16 years ago

A girl is whirling a ball on a string around her head in a horizontal plane. She wants to let go at precisely the right time so that the ball will hit the target on the other side of the yard. When should she let go of the string?

16 years ago

Will an object weigh more at the equator or at the poles? What two effects are at work and do these effects oppose each other?

16 years ago

Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach. Estimate the greatest distance of the comet from the sun. Is it still in the Solar System? What planet's orbit is nearest whe...

16 years ago

determine if the fraction has a terminating decimal representations. (2^4)x(11^16)x(17^19) ------------------- (5^2) how would I do this?

16 years ago

A couple was assessed property taxes of $1938.90 on a home valued at $168,600. What might Frank expect to pay in property taxes on a home he hope to purchase in the same neighborhood if it has a value of $118,300? round to the nearest dollar.

16 years ago

A child on a sled starts from rest at the top of a hill and slides down. Does the velocity at the bottom depend on the angle of the hill if: (a) it is icy and there is no friction? (b) there is friction (deep snow)? I'm thinking that the angle will always...

16 years ago

A projectile is fired at an upward angle of 45 degrees from the top of a 265-m cliff with a speed of 185 m/s. What will be its speed when strikes the ground below? (Use conservation of energy.) I have a diagram of it but I don't know what equations to use...

16 years ago

A driver notices that her 1150-kg car slows down from 85 km/h to 65 km/h in about 6 seconds on the level when it is in neutral. Approximately what power (watts and hp) is needed to keep the car traveling at a constant 75 km/h?

16 years ago

The Achilles tendon is attached to the rear of the foot as shown in the figure below. When a person elevates himself just barely off the floor on the ball of one foot, estimate the tension Ft in the Achilles tendon (pulling upward) and the (downward) forc...

15 years ago

A 6.0-cm diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32 kPa and 24 kPa, respectively. What is the volume rate of flow? I know to use Bernoulli's Eq...

15 years ago

Write a 200- to 300-word paper comparing long- and short-term financing. Describe situations in which each type of financing would be used

15 years ago

What are macroeconomics and microeconomics and what is the difference between the two?! I am trying to decide which class to take.

15 years ago

How to find an online typing program?

15 years ago

Two consecutive positive integers have the property that one integer times twice the other equals 612. What is the sum of these two integers?

15 years ago

given g(x)= 12 - 5x Find g(5).

15 years ago

Solve: 1.) 2x² + 24 = x² The answers I obtained were: x = i√24 and x= -i√24 are these correct? 2.) 9x³ = 25x 3.) 5x² - x = 7x² - 5x - 2 4.) 2x² = x³ + 4x - 8 ~Thank you

15 years ago

Simplify each of the following expressions using the distributive property. need help please show work 5(x+y) -3(5+t)

15 years ago

prove that the difference of squares of any two odd numbers is divisible by 4. (first list at least 3 examples to support this statement.)

14 years ago

12.00 g of sugar is dissolved in some water in a cylinder of diameter 7.00 cm. To what height should the cylinder be filled (with more water) to produce a solution with concentration 11.00 g/dm^3?

14 years ago

I am wondering... what is a "chant"? Like what was the first chant where did it come from? Also, what is its original function and why is it important to the history of music and how does it relate to today's music?

14 years ago

Just two more things. I can't find a proper verb to include in 1. 1) Can I officially inform the parents about the existing cooperation between our schools, which will be accomplished (??)through various projects? 2) As I wrote you or as I wrote to you in...

13 years ago

What are the oxidation numbers for the elements in the compound C2H5COOH?

14 years ago

Can you help me express the following sentences? Especially sentence 3. 1) Herewith I'd like to confirm the booking for a double room in half board for five nights. 2) Here are the datails of my credit card. 3) According to your hotel cancellation policy,...

14 years ago

I need to use to suggest me a site with information on the German concentation camps and the holocaust (vey easily explained). It is designed for English learners at an intermediate level.

14 years ago

Could you please check these sentences? Thank you very much. 1) Finally, an albatross came through the fog and was greeted as if it had been a Christian soul. 2)The albatross ate food it had never eaten before and flew round the ship . The ice split as th...

14 years ago

Can you please check if these sentences are correct? In particular, I'd like you to help me find an introductory sentence to my paragraph and a proper conclusion (with reference to the theme of the double). 1) Explore the theme of the double as it occurs...

14 years ago

I left out a few more sentences. 1)Finally, Jekyll and Hyde represent the double side of man's soul. They are the stereotypes of people who are good and evil. As Jekyll has lead a virtuous life, his face is handsome, his hands are white and well-shaped, h...

14 years ago

Could you please explain to me why the first sentence is wrong? How can I improve it? Obsesses or haunted in sentence 2? Can you please check the rest? 1)As for Shelley's Frankenstein, both Doctor Frankenstein and his creature are complementary: they both...

14 years ago

I left out the following three sentences. Thank you very much. 1) Nature, in fact, was a friend and comforter to man, the only great teacher from which, by penetrating into her divine essence, man could learn virtue and wisdom. 2) The mission of the poet,...

14 years ago

Thank you very much. I think you misunderstood my sentence starting with "unlike in Wordsworth" since I wanted to draw a parellel between Wordsworth's and Coleridge's concept of nature. Can you help me rephrase sentences number 2 and 3? Thank you. 1)Unlik...

14 years ago

Thank you. Could you check these sentences, please? Are they possible? 1) Unlike Wordsworth's nature, Coleridge's nature (one) is infused with abstract and supernatural meanings. 2) Differing from Wordsworth, Coleridge's nature is viewed as infused with s...

14 years ago

I corrected the two sentences as you told me. Can you please check them? Thank you. 1) Coleridge's view of nature, unlike Wordsworth's, is infused with abstract and supernatural meanings. 2) Differing from Wordsworth, Coleridge's view of nature is infused...

14 years ago

I forgot to include this sentence. Can you please check the tense choice since I switched from the past to the present? Thank you. 1) In the poem Daffodils the flowers are presented not as statically as in a painting, but alive with motion. 2.They lay bes...

14 years ago

I left out the following sentences. They are part of the same paragraph. Thank you. 6.She is not going to give up (?) her second-holiday home because the rent is very cheap and the place does her husband good because it keeps him three hundred miles away...

14 years ago

Thank you really much. Here are some more sentences I'd like you to check. 1)Victorian refers to a set of moral values which were established during the reign of Queen Victoria. They were based on personal duty, hard work, respectability and charity. ) 2....

14 years ago

Can you just check if everything is correct? Thank you. 1) Focus on the two recurrent themes in Joyce’s Dubliners and explain what all the characters have in common. They focus on two recurrent themes: paralysis and epiphany. 2) Paralysis can be described...

14 years ago

I can't send you my post.

14 years ago

I left out a few sentences. Please, help me! 1) Eveline lied to her father when she hid her relationship with Frank to him. She lied to her father because she knew he wouldn’t have accepted her relationship with Frank. 2) Who did he get inspiration from?...

14 years ago

How did the Hawaiian Islands form geologically? How could the relative age of the islands be determined? (In other words, how would you know which island was oldest, which was youngest, etc.)?

14 years ago

How many milliliter of 0.150 M H2SO4 (sulfuric acid) are required to react with 1.87 g of sodium hydrogen carbonate, NaHCO3, according to the following equation? H2SO4 + 2NaHCO3 --> Na2SO4 + 2H2O + 2CO2 dont understand this am i suppose to change 1.87 int...

14 years ago

How would you make up 255 mL of 0.150 M HNO3 from nitric acid that is 68.0% HNO3? The density of 68.0% HNO3 is 1.41 g/mL.

14 years ago

A closed manometer is filled with an oil with density of 0.776 g/mL. What is the pressure in mmHg when the liquid column in the manometer stands at 85.7 mm? im not sure what mm is suppose to stand for here (probably meters but that doesnt fit into the for...

14 years ago

I need to prepare different grammar tests. I really hope you can see if everything is OK. 1) Ask for the information in the bold part of the sentence. (6 pts.) 1.It usually takes him half an hour to drive to work. 2.Sandra was hurrying to school yesterday...

14 years ago

I still have to include a few more exercises. Thank you very much. 1) Complete the sentences with must/mustn’t, have to/don’t have to, should/shouldn’t (9 pts.) 1) My mum is angry with me. I ................ stay in my room an study in the afternoon. 2) S...

14 years ago

A 200.0 mL flask contains 1.03 mg of O2 and 0.41 mg HE at 288K. Calculate the partial pressure of oxygen and helium in the flask. What is the total pressure?

14 years ago

a sample of natural gas is 85.2% methan, CH4, and 14.8% ethane, C2H6, by mass. What is the density of this mixture @ 18C and 748mmHg. so i know that i have to use this formula d=(PM)/(RT) but i don't know how to convert the percentages into g/mol (molecul...

14 years ago

can someone explain the leveling effect in chemistry or provide a good link please? in my chem book it says something like HNO3<H2SO4<HCl<HBr<HI<HClO4 but i don't get why they are greater/smaller

14 years ago

if the rms speed of NH3 molecules is found to be 0.510 km/s what is the temperature (in Celcius)? can someone solve this using the formula c=((2.55*R*T)/M)^1/2 c is the speed r is 8.314 constant M is the molar mass of NH3 17.031

14 years ago

what are the hydronium-ion and the hydroxide ion concentration of a solution at 25 C that is 0.0050 M strontium hydroxide, Sr(OH)2? a solution of hydrochloric acid is 0.20 M HCl. What is the hydronium-ion at 25 C? What is the hydroxide ion concentration a...

14 years ago

so i have a table that tell me whether the its a strong/ weak acid/ base but how do i use it to determine whether the equation will favor left or right of the equilibrium?

14 years ago

A) Calculate the hydrogen-ion concentration of a 5.45*10^-4 M H2CO3, solution, noting that Ka is bigger than Kb. B)What is the concentration of CO3^2-? after finding the concentration to A), do i use that concentration (M) as the initial M for CO3^2-? tha...

14 years ago

what is the pH of a 0.025 M aqueous solution of sodium propionate, NaC3H5O2? What is the concentration of propionic acid in the solution?

14 years ago

Hello, everybody! I'm back from my holiday and I need you to check a few sentences I have to include in a test. Thank you very much for your invalubale help. 1)He paid £200 for that shirt. It was a real rip-off. 2) How much money did he pay for that shirt...

14 years ago

so this problem tells me to find the thickness of one atomic layer of gold using the volume occupied by one gold atom (1.73*10^-23) which i found from the previous problem idk but is thickness the same as volume? from the previous question it also gives m...

14 years ago

(5x-9y+8)-2(3x-7y+5)

14 years ago

calm/nervous, quick-tempered easygoing/touchy, think-skinned, crabby determined/indecisive easy-going/stand offish nosy(intrusive, prying, snoopy) / indifferent, uncaring, unconcerned, uninterested determined/undetermined OR indecisive sensible/irresponsi...

14 years ago

Maurice has been recording the price of fuel at a local gas station throughout the week. His data is shown below. Day Price (per gallon) Monday $2.71 Tuesday $2.77 Wednesday $2.86 Thursday $2.80 Friday $2.75 To the nearest percent, what is the percent cha...

14 years ago

I urgently need you to check if all my corrections are OK. Thank you very much in advance. 1) The Elizabethan thetre was made up of three different galleries and three kinds of stages (it was made up of three stages surrounded by three tiers of galleries)...

14 years ago

Thank you. How would you check sentences numer 3 and 4. I'm not sure about my corrections Just two things on my previous post. 1)"as long as Dunsinane hill doesn't move towards him " is better than "until Dunsinane hill moves towards him"? 2) Women weren'...

14 years ago

Here are other mistakes I checked.I'd like you to have a look at them. Thanks. 1) Elizabeth I led a powerful emperor with a strong ship army. Elizabeth made England a powerful seafaring and commercial country. "Does the word ship army exist???" 2) She was...

14 years ago

Thank you. Do you say "he will become Thane of Cowdor OR the Thane of Cowdor? I looked up prophesy in the dictionary and found out that it can be both a noun or a verb. (to Prophesy: to say what will happen in the future, especially using religious or mag...

14 years ago

I hope you can check if the grammar is OK in the following sentences. Thank you. 1) Female roles were perfomed/played/acted by boy-actor. 2) The apron stage was roofed and was raised about five feet off the ground. 3) Most of the action took place there....

14 years ago

Thank you very much. I need you to check these sentences, too. 1) Elizabeth was considered as a political genius of the first rank. 2) The Spanish fleet was composed of slow and heavy ships and that's why Elizabeth won the war. 3)He tells his soldiers to...

14 years ago

Could you please recommend me a site where students can learn how to write cohesive and grammatically correct paragraphs? They are asked to write ten-line paragraphs on each of the literary and historical topic dealt with in their book but their grammar i...

14 years ago

I forgot the following sentences. 1) They suspect of Duncan's sons. Lady Macbeth gets crazy and starts talking and walking in her sleep. 2) The King's Men was Macbeth's acting company. They (or it?) assumed this name when James I became king. 3) The Spani...

14 years ago

Could you please check these sentences, too? Thank you very much. 1) The witches were associated with the devil. 2) Once you told me I could use this sentence. The daffodils are described not statically as in a painting but alive with motion. 3) He shows...

14 years ago

Thank you. I forgot to add the following questions. 1) The devices used by Wordsworth are: Similes (lonely as a cloud ......), personification (crowd, host..), repetition. (what connector is most approprate to list the devices?) 2) The daffodils are descr...

14 years ago

Could you please check these two sentences, please? 1) Dorian wishes he would stay young forever whereas the portrait would grow old in his place. 2) According to Wordsworth, man and nature are (were) two different but inseparable parts of the same univer...

14 years ago

I forgot to include the following sentences. Thank you. 1) Wordsworth recollects/recounts the experience of a walk he went on/for with his sister Dorothy, near their home in the Lake District. 2) The poet is completely detached from the outside world. He...

14 years ago

I urgently need to express in words the following diagram which illustrates the process of poetic creation. 1. sensory experience. 2. emotion 3. recollection in tranquillity. 4 contemplation of emotion. 5. production of kindred emotion. 6. poetry. The sen...

14 years ago

I left out 2 sentences I'd like you to check. Thank you. 1)Sybil is the only thing Dorian cares about (is for possible?). French artists devoted themselves to the search of beauty. 2) They persued any kind of sensations. After lookig at the picture, Lord...

14 years ago

What is the density of propene gas measured at 2.5 atm and 47C? I know that I use the combine gas law, but I don't know how to find "n" in this particular problem. Please help ASAP!

13 years ago

ok i have 2 problems and id appreciate it if someone can help :) 1. given hexagon ABCDEF with diagonal AC being 2 calculate the area and perimeter of the hexagon. 2. the perimeter of an equilateral triangle is equal to its area. find the side length

13 years ago

A moving company charges a flat rate of $85 plus and additional $.17 per mile driven. How far must the company drive to earn @ least $100? Round to the nearest mile.

13 years ago

In what ways is science self correcting? i was just intrested :)

13 years ago

Here is the second exercise I'd like you to check. Thank you, Writeacher. 1.I am used to (read) __(reading)________till late. 2. The manager would like (speak) _(to speak)_________ to his secretary. 3. I remember (go) ___going_______ to primary school by...

13 years ago

Writeacher, here are my sentences on phrasal verbs I urgently need you to check. Thank you. 1) I can’t get around to thanking you for your hospitality.I’ll get back at you for being so rude to me. 2) When will you get around to clearing your room?He is a...

13 years ago

Here are the other sentences.Thank you. 1) She took on responsibility for the whole family.She forgot to turn down the gas and burned her dinner. 2) How many people turned up at your party? That child is bringing up food. She brought up three children her...

13 years ago

Thank you very much, Writeacher. Can you check these descriptions of pictures I need to prepare for tomorrow, too. 1) Some workers are at a self-service restaurant (I think it is a sort of canteen in their own firm) and they are choosing their meals from...

13 years ago

I left out the following descriptions. Can you please have a look at them, too? Thank you. 1) Picture 4 shows a vending machine in the left corner, a white table with five coloured chairs around it in the middle and a noticeboard hanging on a wall in the...

13 years ago

Writeacher, could you please check these sentences I wrote about a listening a need to prepare for tomorrow. 1) An elderly man remembers the regional tradition on New Year’s Eve when he was a child . In particular, what made New Year’s Eve special (for hi...

13 years ago

Writeacher, we left out a few sentences yesterday. I wonder if you could have a look at them today. Thank you. 1) I couldn’t get off last night. It must have been the coffee. His lawyer managed to get him off. He got off/away with a fine. 2) On Friday aft...

13 years ago

Sorry, Writeacher. I mixed two senteces without realizing it. 1) James prefers to define “youth” as the age in which people are not children any more and not yet adults. 2) James believes that youth culture is always changing since young people are very r...

13 years ago

Thank you very much, Writeacher. I still have to describe a few pictures. 1) Picture 1 shows some teenagers leaning on a bar, whereas two are standing near them. They are all wearing casual clothes: short-sleeved T-shirts or shirts over a pair or ripped j...

13 years ago

I left out the following sentences. Thank you very much. 1) The man in the middle is wearing his pink hair in cornrows and has a ring earring in his right earlobe. He’s looking down and has a black, studded, leather jacket on. 2) Next to him I can see ano...

13 years ago

C=6.28*4.5 = 28.3m/rev.=Circumference. a. V=5.35rev/min * 28.3m/rev=151m/min. c. a = (Vf - Vo) / t, a = (5.35 - 0)rev/min / (29/60)min = 11.1m/min^2.

14 years ago

10b^6 /(3r^2*9r^7/100b), 10b^6/(27r^9/100b), Invert fraction and multiply: 10b^6 * 100b/27r^9, 1000b^7 / 27r^9.

14 years ago

a. 64o/2.70min * 1rev/360o * 1min/60s= = 1.1 rev/s. b. C = pi*D = 3.14*5.37=16.9 Ft=5,12 m. The Circumference. b. 64o/2.70min * 1rev/360o * 5.12m/rev * 1min/60s = 5.62 m/s.

12 years ago

See Related Questions: tue,1-15-13,11:38am.

12 years ago

I = P*r1*t+P*r2*t = $380. I = P1*.05*1+P2*.09*1 = 380 0.05P1 + 0.09P2 = 380. Multiply both sides by 100: Eq1: 5P1 + 9P2 = 38000. Eq2: P1 + P2 = 6000. Multiply Eq2 by -5: 5P1 + 9P2 = 38000 -5P1 + -5P2 = -30000 Add the 2 Eqs: 4P2 = 8000 P2 = $2000 = Investm...

12 years ago

I = P*r1*t+P*r2*t = $380. I = P1*.05*1+P2*.09*1 = 380 0.05P1 + 0.09P2 = 380. Multiply both sides by 100: Eq1: 5P1 + 9P2 = 38000. Eq2: P1 + P2 = 6000. Multiply Eq2 by -5: 5P1 + 9P2 = 38000 -5P1 + -5P2 = -30000 Add the 2 Eqs and

12 years ago

b. d1 = 85t1 = 16 km, 85t1 = 16, t1 = 16 / 85 = 0.1882 h = 11.29 min. d2 = 115t2 = 16 km, 115t2 = 16, t2 = 16 / 115 = 0.139 h = 8.35 min. t1 - t2 = 11.29 - 8.35 = 2.94 min. Car #2 arrives 2.94 min. sooner. c. 15 min = 1/4 h = 0.25 h. d1 = d2, 115t = 85(t...

15 years ago

V^2 = Vo^2 + 2g.h. V^2 = 0 + 19.6*8 = 156.8 V = 12.5 m/s.

12 years ago

X = -20 m. Y b= -20 m. D^2 = X^2 + Y^2. D^2 = 20^2 + 20^2 = 800 D = 28.28 m. = Displacement. tanAr = Y/X = -20/-20 = 1. Ar = 45o = Reference angle. A = 180+45 = 225o.

12 years ago

See 9:08am post.

12 years ago

L = V/F. V = L*F = 15*24 = 360 m/s. Note: L = Wavelength.

12 years ago

(1.4^X3+4.8^X2-3.3X)-(-4.9^3-4.3^2+86 RULE FOR SUBTRACTION:change the sign of number being subtracted and add. (1.4X^3+4.8^2-3.3x)+(4.9X^3+4.3X^2-86= 6.3X^3+9.1X^2+3.3X-86.

15 years ago

d1 = Vo*(t+1) + 0.5at^2, d1 = 33(t+1) + 0.5*0*(t+1)^2, d1 = 33(t+1) + 0 = 33t + 33. d2 = 0 + 0.5*2.62*t^2, d2 = 1.31t^2. d1 = d2, 33t + 33 = 1.31t^2, 1.31t^2 - 33t - 33 = 0, Solve using Quadratic Formula and get: t = 26.15s, and -0.96s. Use the positive v...

14 years ago

Multiply 2 by each term in the parenthesis: 12. 2(X+5) = 2*X + 2*5 = 2X + 10. 13. (X+4)(X-2) = 0. X+4 = 0, X = -4. (X-2) = 0, X = 2. Solution: X = -4, OR X = 2.

14 years ago

We have 2 fractions with a common denominator 0f 3x. 14/(3X) + (X+5)/(3X)=(14 + (X+5)) / 3X = (14 + X + 5) / 3X = (X+19) / 3X.

14 years ago

1. Draw a hor. line from the origin on the positive x-axis(due East). Label it 80km. 2. Draw a ver. line upward from the end of the hor line parallel to the positive y-axis(due North) and label it 192km. If you drove along the given parh, you would have t...

14 years ago

33km @ 90+10 = 33km @ 100 deg.,CCW. 18km @ 270+45 = 18km @ 315 deg.,CCw. 14km @ 270+50 = 14km @ 320 deg.,CCW. X=hor.=33cos100 + 18cos315 + 14cos320 = 5.73 + 12.73 + 10.72 = 17.7km. Y=ver.=33sin100 + 18sin315 + 14sin320 = 2.95 + (-12.73) + 9.0 = -0.78km. T...

14 years ago

Oh, Thanks sir.

16 years ago

Thank-you also!!

16 years ago

x^3 -4x^2 -x + 4. The expression has 4 terms. Therefore, we can form 2 groups with 2 factorable terms in each group: (x^3 - x) + (-4x^2 + 4), Factor each pair: x(x^2 - 1) -4(x^2 - 1), Factor out (x^2 - 1): (x^2 - 1)(x - 4), (x + 1)(x - 1)(x - 4). NOTE: (X...

14 years ago

OOPs! 2. u*Fv = Fk 1o6.8u = 66.8 u = 66.8 / 106.8 = 0.625. NOTE: Fv = 106.8 N.

13 years ago

Correction: -Fk = 2.6 - 69.4 = -66.8Fk = 66.8 N. 2. u*Fv = Fk 127.4u = 66.8 u = 66.8 / 127.4 = 0.524 = uk.

13 years ago

Wb = m*g = 13kg * 9.8N/kg = 127.4 N. = Wt. of box. Fb = 127.4N @ 33 Deg. = Foce of box. Fp = 127.4*sin33 = 69.4 N. = Force parallel to incline. Fv = 127.4*cos33 = 106.8 N. = Force perpendicular to incline. 1. Fn = Fp - Fk = ma 69.4 - Fk = 13 * 0.20 = 2.6...

13 years ago

KM = 2LM, 5x - 6 = 2(2x+4), 5x - 6 = 4x + 8, 5x - 4x = 8 + 6, X = 14.

14 years ago

% Financed = 100% - 18% = 82%. Amt. Financed = $24,000 * 0.82 = $19,680. Pt = Po*r*t / (1 - (1+r)^-t). r = 4.5% / 12 = 0.375% = 0.00375 = Monthly % rate expressed as a decimal. Pt=(19680*0.00375*36)/(1-(1.00375)^-36, Pt=2656.80 / 0.126063452 = $21,075.10....

14 years ago

See previous post.

13 years ago

1. 7X + 3Y = 42. Convert the std form Eq to the slope-interceptform: 7X + 3Y = 42, 3Y = -7X + 42, Y = -7/3X + 14, (Y = mx + b). Our 1st point will be at the Y-int where X is always 0. P1(0 , 14). Since our slope is neg. DECREASE b by 7: y = 14 - 7 = 7. X...

15 years ago

V(h,k) = V(1,4), P(0,3). Y = a(x - h)^2 + k. P(0,3). Y = a(0 - 1)^2 + 4 = 3, a + 4 = 3, a = -1. Eq: Y = -1(x - 1)^2 + 4. Vertex Form. Y = -x^2 + 2x - 1 + 4. Y = -x^2 + 2x + 3. Solve using Quadratic Formula: X = -1, and 3. Or (-1,0), and(3,0) Input = X. Ou...

14 years ago

Does that mean the answer would be the square root of 39419?

16 years ago

Okay thanks.

16 years ago

Y = Elevation. Y =< 1458 meters.

14 years ago

Use 2(3x - 7) + 4 (3 x + 2) = 6 (5 x + 9 ) + 3 to solve

15 years ago

(-3/(X^2-2X+1))+(2X/(X^2-5X+4) In order to find an LCD, we need 2 or more fractions separated by a plus or minus sign. so I added a plus sign. CD=(X^2-2X+1)(X^2-5X+4)=(X-1)^2(X-1)(X-4).This product is a CD but not the LCD. To get LCD, reduce the squared f...

15 years ago

Vo = 18m/s @ 52 deg. Vo(hor) = 18cos52 = 11.08m/s. Vo(ver) = 18sin52 = 14.18m/2,up. Vf^2 = Vo^2 + 2gd = 0 @ max height. (14.18)^2 + 2(-9.8)d = 0, 201.07 -19.6d = 0, d = 10.3m. = max barrier that can be cleared.

14 years ago

V=NAh=6(14x12.1/2)10=5082cubic cm V=volume; N=number of sides=number of triangles that forms base of hexagon; A=area of each triangle(quanity in parenthesis); h=height of hexagon. The 6 triangles formed by drawing a line from the center to each vertex are...

15 years ago

If an equilateral triangle has a perimeter of 18,the length of each side of the triangle is six(18/3=6). Therefore, the perimeter of the hexagon is thirty-six(6x6=36). If a straight line is drawn from the center to each vertex, six congruent equilateral t...

15 years ago

Factor:X^2 + 14X + 49. 49 = 1*49 = 7*7 Try 1 and 49 in your factored equation: ( X + 1 )*(X + 49). The product of the two binomials does not equal the original equation, Therefore, 1 and 49 is incorrect. Try 7 and 7:(X+7)*(X+7)= X^2 + 14X +49. Yes!

15 years ago

Problem:(X+ )^2. The results will be a perfect square regardless of what number you put in the blank, because you remove the parenthesis by squaring the contents.(X+2)^2=X^2+4X+4.(X+3)^2=X^2+6X+9.Both trinominals are perfect squares.

15 years ago

Mathematical solutions to systems of equations are more accurate than graphical solutions; because when the point of interception fall between grid lines, you must estimate the point location. Which is easier the elimination method or the substitution met...

15 years ago

Problem: (X^2+4X-5)/(5X-5)*5X/(X+5) Solution:(X-1)*(X+5)/5(X-1)*5X/(X+5)=(X+5)/25X/(X+5)=(X+5)*(X+5)/25X=(X+5)^2/25X. The parenthesis are neccessary for clarity. Notice that the numerator and a portion of the denominator are factored.

15 years ago

1. C=25P+150. C=Total cost. P=The number of people attending. 2. Slope=25 3. The slope represents the cost per person.

15 years ago

2. C1=C2 7.95+.05X=9.95+.03X .05X-.03X=9.95-7.95 X=100 Minutes CI=Cost at 1st company C2=Cost at 2nd company

15 years ago

15. Rate upstream=30/4=7.5m/hr Rate downstream=30/2.5=12m/hr Rate in stillwater=(7.5+12)/2=9.75m/hr

15 years ago

20. 5X^2-10X=0 5X(X-2)=0 5X=0, X=0 X-2=0, X=2 Solution set:x=0,and x=2.

15 years ago

50. (x-1)(x^3+x^2+x)=x^4+x^3+x^2-x^3-x^2-x=x^4-x=x(x^3-1)

15 years ago

P+Int.=1000000. P=Principal=Total Dep. P+(0.03)(30)P=1000000 P+0.9P=1000000. P=526315.79=Total dep./30years Dep./yr=526315.79/30=17543.81

15 years ago

2X-Y=1. (0,-1), (1,1) 8X-4Y=8. (0,-2), (1,0) The solution of the two equations is the point where their graphs intersect. The graph using the above points showed that the lines are parallel and do not intersect. Therefore. there is no solution. The two li...

15 years ago

Sun/Sat.=1.988x10^27/5.688x10^23= 0.3495x10^4=3.495x10^3

15 years ago

(8a^2.b^5)(-7a.3b)=-168a^3.b^6 Hint: Multiply the constants first.

15 years ago

3^31=6.1767X10^14=0.61767X10^15 9X3^30=1.8530X10^15 3^33=5.5591X10^15=The greater number Hint: All 3 numbers were raised to the same exponent for ease of comparison. For instance,5.56 is greater than 0.62 and 1.85.

15 years ago

Factor 6X-X^3-X^2 completely. Step1. Arrange exponents in decreasing order: -x^3-x^2+6x. Step2.-X(X^2+X-6) Step3. -X(X-2)(X+3). The equation in step2 is not completely factored, because the trinomial can be factored into 2 binomials (step 3).

15 years ago

4. 27Y^4-147Y^2=3Y^2(9Y^2-49)= 3Y^2(3Y+7)(3Y-7) Hint: 9y^2-49 is the difference of 2 squares and is factored into 2 binomials.

15 years ago

F(x)=5X+1/4 Or Y=5X+1/4 To determine the inverse of a function, replace all Xs with Y and all Ys with X: X=5Y+1/4 Then Multiply both sides of eguation by 4 to eliminate the fraction: 4X=20Y+1. Solve for Y: Y=(4X-1)/20= Inverse function.

15 years ago

14a. Y=mX+b, m=slope, b=Y-intercept. Equation:Y=4/3X-2 14b. Given: Y=-2X+5, p(-2,6). m1=-2 m2=the negative reciprocal of m1: m2=1/2, Y=mx+b, 6=1/2(-2)+b, b=7, Equation: Y=1/2X+7.

15 years ago

If the Central Angle is 98 degrees, the arc is also 98 degrees. Since the arc is less than 180 degrees, it is a minor arc.

15 years ago

D^2=(5/3-2/3)^2+(7-4)^2 D^2=1+9=10 D=sqrt10=3.16

15 years ago

(X-h)^2+(y-k)^2=r^2. h=x-coordinate of the center, k=y-coordinate of the center. (x-2)^2+(y-0)^2=5=r^2. C(h,K)=(2,0), r^2=5, r=sqrt5=2.24

15 years ago

Given:X^2=5X+2. Step1. X^2-5X=2 Step2. X^2-5X+(5/2)^2=2+(5/2)^2 Step3. X^2-5X+25/4=2+25/4. Step4. (X-5/2)^2=33/4 Step5. Take sqrt of both sides. X-5/2=+/-sqrt33/2 Step6. X=5/2+/-sqrt33/2. Step7. Place equation in step6 over a common denoninator. X=(5+/-sq...

15 years ago

The line segment is a vertical line located on the y-axis, and its' mid- point is P(0,-1.5). Your answer is CORRECT!!

15 years ago

Given:CosA=SQRT2/2 Since the cosine is positive and the tangent and cotangent are negative (less than 0), we are in the 4th Quad- rant. CosA=sqrt2/2=x/r, x=sqrt2, r=2, Y=sqrt(r^2-x^2)=sqrt(4-2)=+/-sqrt2, Y=-sqrt2(4th Quadrant). SinA=y/r=-sqrt2/2. CosA=sqr...

15 years ago

Given: X=2Y^2+3 Vertex form:X=(y-k)^2+h, h and k are the x and y-coordinates of the vertex. X=2(y-0)^2+3, V(h,k)=(3,0), Directrix: X=h-1/4a=3-1/8=2 7/8,Y=K=0, D(2 7/8,0). Focal: X=h+1/4a=3+1/8=3 1/8, Y=k=0, F(3 1/8,0). Axis: Y=0 (A horizontal line on the...

15 years ago

9.32ml/sec=.00932L/sec=.00932/(1/60)L/min=0.5592L/min=0.5592L/(1/60)hr=33.55L/hr

15 years ago

57.3qtsx32 oz/qt=1833.6 oz. 1833.6 ozx29.6mL/oz=54274.56mL 54274.56mL/25mL=2171 Vials

15 years ago

V=3.14X1.5^2X5.5/3=13.0cubic inches.

15 years ago

V=(3.14X1.5^2X5.5)/3=13.0cubic inches.

15 years ago

12.2FT/SEC=0.00231MILES/SEC =0.00231MILES/(1/60)min =0.1386miles/1min =0.1386 MILES/(1/60)hr =8.316miles/hr 8.316 miles /hr X 24 hrs/da=199.6 miles/da 25000 miles/199.6 miles/da=125 days.

15 years ago

1 meter=3.3ft, 56200 meters=185460ft. 56.2km/s=185460ft/s=35.125 miles/s =35.125miles/(1/60)min =2107.5 miles/min

15 years ago

1 yr=365.25 days. 1x10^9yrs = 365.25 x10^9 days. 1 day = 24 hrs. 365.25 x10^9 days = 24 x 365.25 x 10^9 = 8766 x 10^9 hours. 1 hr = 60 min. 8766 x 10^9 hrs = 60 x 8766x10^9 hrs= 525960 x 10^9 min =5.25960 x 10^14 min

15 years ago

1. 3X-4<10-4X. 2(X-5)>3(2X-6) 3X-4<10-4X, 7X<14, X<2. 2(X-5)>3(2X-6), 2X-10>6X-18, -4X>-8, X<2. Since the solution to both inequalities is the same(X<2),they are equivalent.

15 years ago

2. Cost=2.49X + .6X +3.75=3.09X +3.75 X=Number of jars purchased. 3.75=Handling charges=constant. 4. GIVEN: (-2,3), (-4,6) Slope=m=(Y2-Y1)/(X2-X1)=(3-6)/(-2-(-4))=-3/2, Y=mX+b,3=-3/2(-2)+b,b=0,Y=-3/2X b=Y-intercept.

15 years ago

SQUARE: A=S^2=S.S, Perimeter=P=4S. REGULAR HEXAGON: Perimeter=T=6h,h=T/6. h+P=T/6+4S.

15 years ago

DIAGONALS: 12 and 16 cm. The diagonals of a rhombus are perpendicular bisectors of each other and form 4 congruent right triangles. The legs of a triangle are: X=12cm/2=6cm, and Y=16cm/2=8 cm. The length of each side is:S^2=X^2+Y^2= 6^2+8^2=100sq.cm, S=10...

15 years ago

If the problem means 4 times the sqrt (81/16),then Reiny's answer(9) and procedure is correct. If the problem is asking for the 4th root of(81/16), then the answer is a(3/2).

15 years ago

The Mean Deviation is the average of the five numbers: (2+4+6+5+3)/5=4

15 years ago

Yes, you can solve the exponential equation without using logs if you are using a calculator. EQUATION:L=2.43*W^0.3326=2.43*24^0.3326=2.43*2.8778=6.99=7.0 In this example, L was the unknown and W was 24lbs.The calculator was used to solve expo. If W was t...

15 years ago

sqrt(3)b+sqrt(2)=sqrt(7)b-10 sqrt(3)b-sqrt(7)b=-10-sqrt(2) 1.732b-2.646b=-11.414 -0.914b=-11.414 b=12.49 Your answer(a) is correct!

15 years ago

(X+5)/(X-3). The non-permissible value of X is the value that makes the denominator =0: X-3=0, X=3(non- permissible).

15 years ago

3sqrt(-27)=3sqrt(9*3*-1)=3*3i*sqrt3= 9i*sqrt3. imagenary solution: d

15 years ago

This inequality means that Z can vary from -1.1 to 0. Therefore, Z=-1.1min. Z=0,max.

15 years ago

Pt=Po*(r+1)^n. Compounded daily. Pt=principal at maturity. Po=Initial principal or deposit. r=DPR=Daily percentage rate. n=The number of compounding periods. t=6mo=0.5yr.=time for maturity. Po=1500. APR=4.0 r=4/365/100=0.000109589 n=0.5*365=182.5 days. Pt...

15 years ago

Logb^3*sqrtX^8/(Y^2)(Z^5)= Logb^3*sqrtX^8-Log(Y^2)(Z^5)= Logb^3+LogsqrtX^8-LogY^2+LogZ^5.

15 years ago

Kathy travels 57km/h faster and 21 miles farther(57-36) in the same period of time. Therefore r*t=d, 57*t=21. t=21/57=0.3684 hours for each rider. r*t=d, r*0.3684=36, r=97.7km/h for Carlos. r*0.3684=57, r=154.7km/h for Kathy.

15 years ago

LogmP=a, m^a=P.

15 years ago

RATIO=(86.25-52.75)/86.25=33.5/86.25= 6.7/17.25

15 years ago

Original amount=X Dollars. Bought 50 dollar radio. Bal.=X-50 (X-50)-3/5*(X-50)=2/5*(X-50) Bal. 1/2*2/5*(X-50)=1/5*(X-50) Bal. 1/5*(X-50)=35. Solve for X: X=225=Original Amt.

15 years ago

a. Option A.1575000 *120mo.=189000000 in 10 yrs. b. Option B.1.575M @ 18% APR,Compounded monthly. Pt=Po*(r+1)^n. Pt=Value at 10 yrs. r=MPR=Monthly percentage rate. n=the number of interest compounding periods. r=18/12/100=0.015 n=12*10=120 Pt=1575000*(0.0...

15 years ago

The ladder forms a rt. triangle with the wall and ground. The wall is the height.When the height is 10ft, X^2+10^2=16^2, X=12.49ft. When h goes to zero(ladder flat on ground), X^2+0^2=16^2, X=16, t=10ft/5ft/s=2sec. dx/dt=(16-12.49)ft/2s=1.75ft/s

15 years ago

LAW OF COSINES: CosA=(b^2+c^2-a^2)/2bc Cos46=(16+64-a^2)/2*4*8. Cos46=(80-a^2)/64, 80-a^2=64Cos46, a^2=80-64Cos46=35.54, a=5.96=6.0 LAW of SINES: SinB/b=SinA/a SinB/4=Sin46/6,Multiply both sides by 4: SinB=4*Sin46/6=0.4791, B=28.66=28.7

15 years ago

(8r+16)/(24r-24)*(6r-6)/3r+6), FACTOR: 8(r+2)/24(r-1)*6(r-1)/3(r+2), 8/24*6/3=1/3*2/1=2/3

15 years ago

The non-permissable values results in a denominator of 0.Let X^2+X-12=0, Solve for X by factoring:(X+4)*(X-3)=0 X+4=0, X=-4; X-3=0, X=3. Ans.= d

15 years ago

L/P=L/(2W+2L)=1/3. Cross multiply and solve for W: 2W+2L=3L, 2W=3L-2L, 2W=L, W=L/2. CONCLUSION:The width is 1/2 of the Length. Sketch a rectangle and L=4, W=2. L/P SHOULD EQUAL1/3. CHECK:L/(2W+2L)= 4/(4+8)=1/3.

15 years ago

Yes, your answer is correct!

15 years ago

The altitude of an isosceles triangle is the perpindicular bisector of the base and devides the triangle into 2 congruent rt. triangles. Y=12=altitude, X=18/2=9= 1/2 of base. TanB=Y/X=12/9=1.3333, B=53.13 Degrees.

15 years ago

X=3, X-3=0. X=4-i, x-4=-i, Square both sides:X^2-8X+16=-1,X^2-8X+17=0, Multiply:(X-3)(X^2-8X+17)=0 X^3-11X^2+41X-51=0. Yes, the correct choice is C.

15 years ago

1. Correct. 2. Correct. 3.Incorrect. If the pie was cut into 16 slices,each slice is 1/16th of the total area.A 1/2 slice would be 1/32nd (1/2*1/16)of the total area: A=3.14*10^2/32=9.8sq.in. 4.You can cut the pizza into as many piecse as you like; the ar...

15 years ago

Since the 2 angles are equal, the 2 sides are also equal.We'll call the horizontal side X and the vertical side Y. X=12*Cos45=8.48, Y=12*Sin45=8.48. NOTE: the sin45=Cos45.

15 years ago

It is 1/2 of an Equilateral triangle.

15 years ago

Because the two interest rates are slightly different,the investment at 8% will be less than 2/3 of the 7.2% investment by an amount equal to the difference between the interest rates. 2/3=0.6666, 0.6666-(.08-.072)= 0.6586. The investment at 7.2%=X dollar...

15 years ago

The ladder and tree form a right triangle with the ground, The height (h) is the distance from the base of the tree to the point where the ladder touches the tree. Sin65=h/X=h/5, h=5Tan65=10.7 Feet

15 years ago

All of the angles of an equilateral triangle are equal: A=B=C=(7X-3)=60deg. X=9(no units). All of the sides are alsoequal:AB=BC=AC =(3X+12)mm, P=3(3X+12)==9X+36=9(9)+36= 117mm.

15 years ago