Elle

I need help with these: Suppose triangleABC ~ triangleJKL with BC = 28, JK = 12, and KL = 42. Find the perimeter of triangleABC if the perimeter of triangleJKL is 72. & Find the scale factor of triangleDEF to triangleXYZ if triangleDEF ~ triangleXYZ, DE=1...

19 years ago

According to a survey of U.S. firms, the advertising elasticity of demand is only about 0.003. Does this indicate that firms spend too much on advertising? It does not indicate too much is being spent. A 100% increase in advertising would translate into a...

18 years ago

If a consumer is in equilibrium and all prices and her income increase by 25%, she will consume less of those goods that she considers inferior. if false, explain why. Take a shot. What does your economic reasoning tell you? Hint. If all prices and income...

18 years ago

A consumer with a fixed income buys two goods, X and Y. If her demand for both X and Y are unitary elastic, she must spend an equal amount on each good. take a shot, what do you think, and why? i think false, she doesn't have to spend equal amount?? I agr...

18 years ago

yes, its a true or false question is this a true or false question? Suppose that after a price change, the income effect is zero, but the substitution effect is not. For such a good, the quantity demanded is directly related to its price. oh well I think...

18 years ago

The cable of an elevator of mass M = 1020 kg snaps when the elevator is at rest at one of the floors of a skyscraper. At this point the elevator is a distance d = 18.4 m above a cushioning spring whose spring constant is k = 6500 N/m. A safety device clam...

17 years ago

What is the length of the interval of solutions to the inequality 1 ( is less than or equal to) 3-4x (is less than or equal to) 9? I presume that I just plug in numbers for x? The problem is, that all the positive numbers I've tried have made them way les...

16 years ago

Determine the number of positive integers n that satisfy: 1/2 < n/n+1 < 99/101 I don't know how to solve this besides plugging in random numbers, which would take all day. Any other suggestions for a faster way to solve it? Thank you!

16 years ago

I had to find the numbers of atoms in 2 Al (NOsubscript 3)subscript 3. I got 16, but the answer in my book is 26. Who is incorret? Thanks!!!

16 years ago

This isn't homework as much as I am trying to learn this on my own. I am trying to perform an experiment on solar power. I measured and recorded the volume (V= 250 mL) and mass (M= 250 g) of water in a cup. I then recorded the initial temperature(32 degre...

16 years ago

Given the following values for f(t): t : f(t) 3 : -7 6 : 6 9 : 19 12 : 6 15 : -7 18 : 6 a) What is the period, frequency, midline, amplitude, maximum, and minimum? b)Find a possible formula for f(t) c)Find the domain and range of f(t) d)Find a formula for...

16 years ago

A car engine accelerates at a constant rate from 170 rpm to 3050 rpm in 7 seconds. I have found that at t=0, the angular velocity (omega)=17.8 rad/s, the angular acceleration (alpha)= 43.1 rad/s^2, the tangential acceleration = 7.76 m/s^2, and the centrip...

16 years ago

How many different functions are there from a set with 10 elements to sets with the following numbers of elements? a) 2 b) 3 c) 4 d) 5

16 years ago

A satellite has an orbit with pedigree 175 km and apogee 181,200 km. What is the period of the orbit? >>I'm not sure what the associated equation is. I tried the problem using the average radius in the period equation but it didn't work. Please help!

16 years ago

What are the most important functions of health information management? (thank you in advance for your help)

16 years ago

Lee has two tests to study for: Chemistry and French. She plans to study for up to 13h in total. She will spend at least 4 hours studying Chemistry and up to 6 hours studying French. Let x represent the number of hours she will spend studying Chemistry, a...

16 years ago

The value of cos^-1(-(sqrt3)/2) is what?

16 years ago

A car can go from 0 to 85 km/h in 10 s. If the engine delivered twice the power, how many seconds would it take?

14 years ago

I was given this interesting problem: The length of a rectangle is 6 feet longer than its width. The perimeter is less than 48 feet. Write a mathematical expression for the width of the rectangle. How do I go about doing this?

14 years ago

If the amount of mercury in a polluted lake is 0.40 ug/mL, what is the total mass of mercury in the lake? (The lake has a surface area of 100 mi squared and an average depth of 25 ft).

14 years ago

The identities cos(a-b)=cos(a)cos(b)sin(a)sin(b) and sin(a-b)=sin(a)cos(b)-cos(a)sin(b) are occasionally useful. Justify them. One method is to use rotation matricies. Another method is to use the established identities for cos(a+b) and sin (a+b).

14 years ago

A person walks 28.2◦ north of east for 3.33 km. Another person walks due north, then due east to arrive at the same location. How far due north would this person walk? How far would this person walk due east?

14 years ago

A crate is pulled to the right with a force of 80 N, to the left with a force of 125.8 N, upward with a force of 615.4 N, and downward with a force of 248 N. What is the net external force in the x direction? y direction?? Also.... What is the magnitude o...

13 years ago

A crate is pulled to the right with a force of 80 N, to the left with a force of 125.8 N, upward with a force of 615.4 N, and downward with a force of 248 N. Net external force in the x direction: -45.8 Net external force in the y direction: 367.4 N how d...

13 years ago

Two bullets have masses of 2.4 g and 5.2 g, respectively. Each is fired with a speed of 37.0 m/s. a) What is the kinetic energy of the first bullet? b) What is the kinetic energy of the second bullet? I initially used KE=1/2MV^2 and got 1642.8 J, but got it...

13 years ago

A team of dogs drags a 150 kg sled 1.39 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.236. The acceleration of gravity is 9.8 m/s^2. Find the work done by the dogs. Also, What is the energy...

13 years ago

You are sky diving and are trying to land on a target with a radius of 15 m. You land 10 m west and 10 m north of the center of the target. a. Write an inequality to describe the region inside the target area. b. Do you land within the target area? c. If...

13 years ago

PQR is congruent to DJE. complete the statement below PR is congruent to __, DJ is congruent to __ angle E is congruent to __ 1) PR is congruent to PQ, DJ is congruent to PQ, angle E is congruent to angle R 2) PR is congruent to DE, DJ is congruent to DR,...

13 years ago

How would you make 100mL of tartrate buffer, pH 3.5, from 0.100 M tartaric acid, 1M NaOH and deionized and distilled H2O? You need to consider the ionization of two the two acidic groups separately.

13 years ago

16.72g of sodium acetate trihydride (MW=136 g/mol) is dissolved in 100mL water. To this, 4.00g glacial acetic acid (Ka=2.2x10-5, MW=60.0 g/mol) is added, and distilled water is added to to the 500mL mark. Find the final pH and the molar concentration of t...

13 years ago

A portable electric water heater transfers 255 watts (W) of power to 5.5 L of water, where 1 W = 1 J/s. How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 25 degrees celsius to 42 degrees celsius? (Assume that the...

13 years ago

In ion exchange chromatography, why do you have to be careful not to disturb the resin bed or let air enter the resin bed? I get that it disturbs resolution.. but I'm not sure exactly what to say.

13 years ago

A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Potassium bromide (10.5 g), also at 24.2 degree celsius, is added to the water, and after the KBr dissolves, the final temperature is 21.1 degrees celsius. Calculate the enth...

13 years ago

What factor led the English to attempt to kill off entire Native American peoples? A. Native Americans provided a good labor source for the Spanish. B. Native Americans had vast wealth to exploit for tribute. C. The Native Americans' large populations wer...

13 years ago

A 1.1 kg lizard lies on a flat rock tilted. A person decides to tilt the rock hoping that the lizard falls off. The rock is tilted at an angle of 15 degrees with respect to the horizontal. The coefficient between the rock and the lizard is .16. What is th...

12 years ago

Two objects are connected by a string with a mass less, friction less pulley. The coefficient of friction is .298. The block on the table is 4 kg. What must the mass of the hanging block be so that the block on the table will move with a constant speed?

12 years ago

I can't get this right! Please help... Based on the formula below, what quantities of each are needed to make 180 ml of this lotion? Benzyl Benzoate 250 ml Triethanolamine 5 ml Oleic Acid 20 ml Purified water to make 1000 ml

12 years ago

A club consists of 8 seniors, 7 juniors, and 4 sophomores. A subcommittee consisting of 3 seniors, 2 juniors, and 1 sophomore will be chosen. How many different such subcommittees are there?

12 years ago

Verify the identity. 1/(tanx-secx) + 1/(tanx+secx) = -2tanx

12 years ago

divide 12a^4+a^3-2a by 2a. I got the quotient of 6a^3+.5a^2-1 Is this correct

12 years ago

the expression 10x^2+6x^3 is the result of applying the distributive property to the expression 2x^2(5+3x). write the expression such that you applied the distributive to your expression it will give the result presented 1) m^2(a+b)+m^3(a+b) for this I go...

12 years ago

simplify 4^8/4^-4 Would this be 4^4 the correct answer?

12 years ago

The average temperature in the artic circle is -25degrees Celsius. To the nearest integer, what is the average temperature in the artic circle in degrees Fahrenheit? I got -13 degrees I did F=9/5(-25)+32 -45+32=-13 Is this correct?

11 years ago

Jake buys a bicycle for $200 down and$20 a month for 2 years.What is the expression that represents the total amount he will pay for the bicycle? I did $200+$20(2x12) Is this correct?

11 years ago

when 7x^4-49x^3+7x^2 is divided by 7x^2, the quotient is when I divided I got x^2-7x+1 Is this correct?

11 years ago

solve 3/2x-3=5/2x-5 3(2x-5)=5(2x-3) 6x-15=10x-15 minus 6x to both sides -15=4x-15 add 15 to both sides 0=4x 0/4=4x/4 x=0 Is this correct?

11 years ago

Sarah collects money for charity while treat-or-treating. This year she collected $15.80. Last year she collected $14.25. Find the percent increase for Sarah's collection from last year to this year to the nearest percent. $15.80-$14.25=$1.55 difference 1...

11 years ago

one candy bar contains 220 calories. If this represents 10% of the total calories a person consumes in one day, find the total number of calories consumed in a day. 220/x=10/100 cross multiply so x=2200 is this correct? thanks

11 years ago

Hannah plans on going hiking most of the day. It is recommended that she takes at least 3 liters of water with her. She packed 3 water bottles. The bottles she brought are cylinders with a radius of 3cm and a height of 30cm. What is the volume of one bott...

11 years ago

simplify (x^2-3x+6)-(36x^2-18x+6/6) (x^2-3x+6)-(6(6x^2-3x+1/6) cancel the two 6's in the second part of equation x^2-3x-6x^2+3x-1 -5x^2-1 Is This correct? Thanks

11 years ago

Which best describes a polynomial? A) a decimal that is non-terminating or non-repeating B) a close-planed figure formed by three or more line segments C)a number greater than one that has exactly two different factors D) an algebraic expression containin...

11 years ago

a light year is the distance light travels in one year. one light year is about 5.9x10^12 mi. If it takes light 3 months to travel from one star to another, about how far apart are the stars? 5.9x10^12/12*3 I got 1.5x10^12 mi Is this correct?

11 years ago

solve for x x-3(x-1)=6x-3-8x a) infinite solutions b)no solution c)0 d)-1 (x-3)(x-1)=-2x-3 so I believe from the information given the answer would be b) no solution. Is this correct?

11 years ago

How do you solve 49.05 divided by 2.5. Need to see step by step process.

11 years ago

A skater with an initial speed of 5.90 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. Air resistance is negligible. (a) The coefficient of kinetic friction between the ice and the skate blades is 0.125. Find th...

11 years ago

two groups of paddlers meet in the middle of a lake. after a brief visit a person in canoe 1 pushes on canoe 2 with a force of 46 N . Mass of canoe 1 is 150 kg and mass of canoe 2 is 250 kg. find acceleration of each canoe

11 years ago

Can you help me ? I need to figure formula if I have $2023.60 what percent is it of $55,953.77? Also need to figure formula if I have $22,046.02.01 what percent is it of $55,953.77?

11 years ago

A ball of mass m=0.25 kg is dropped from rest. What is the speed of the ball after it falls two meters?

11 years ago

When subjected to a force of compression, the length of a bone (compression Young's modulus 9.4 x 109 N/m2, tensile Young's modulus 1.6 x 1010 N/m2) decreases by 1.5 x 10-5 m. When this same bone is subjected to a tensile force of the same magnitude, by h...

11 years ago

A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 144 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s, while the spring is...

11 years ago

What are the physcial characteristics for humans?

11 years ago

21.0cm^3=___in^3

11 years ago

A 61.5-Ω resistor is connected in parallel with a 146.6-Ω resistor. This parallel group is connected in series with a 16.0-Ω resistor. The total combination is connected across a 13.6-V battery. Find (a) the current and (b) the power dissipated in the 146...

11 years ago

A long solenoid has 1400 turns per meter of length, and it carries a current of 2.0 A. A small circular coil of wire is placed inside the solenoid with the normal to the coil oriented at an angle of 90.0˚ with respect to the axis of the solenoid. The coil...

10 years ago

Whars 189.80. Times 6.25% less 33 1/3 % Is it 189.80 + 11.86 = 201.66 - 67.22 = $134..44

10 years ago

An object is placed to the left of a lens, and a real image is formed to the right of the lens. The image is inverted relative to the object and is one-half the size of the object. The distance between the object and the image is 65 cm. (a) How far from t...

10 years ago

How would you write the equation to represent "Nitrogen and Oxygen react to form Nitrogen Dioxide".

10 years ago

A nozzle which is attached to the end of a 4-in fire hose has a length of 1 ft and a diameter at the discharge end of 1 in. If it has a uniform thickness of 5/16 in and is made of brass, find the weight of material used in the manufacture of 1000 such noz...

9 years ago

Tobi is training to run a marathon. In the first week she runs 25 km and increases this distance by 10% each week. This situation may be modelled by the series 25 + 25(1.1) + 25(1.1)2 + . She wishes to continue this pattern for 14 weeks. How far will she...

9 years ago

Suppose the ice cream shop offers 9 different flavours, and we share 5 scoops. How many ways of ordering are there if All different any combination two scoops of one flavour, two scoops of 2nd, and one of third first one, i did 9! / 5!? second one and thi...

8 years ago

Hi, can you please check my work? I really need to do well on this. 1. What properties of a star are needed to calculate the stars luminosity? a. size and apparent brightness b.mass and distance to the star**** c. temperature and diameter of the star d. a...

8 years ago

The first 5 terms of an arithmetic sequence are: 7 13 19 25 31 Prove that the difference between the squares of any two terms of the sequence is always a multiple of 24 Nth term = ? Nth term squared = ? Mth term = ? Mth term squared = ? Difference = ? ? =...

8 years ago

Wtotal = [(1020)(9.8)-6678] 18.4 = 61051.2J 61051.2J = 1/2 (6500)x^2 x = 4.33m STill wrong :( Help

17 years ago

Um are you saying Wtotal = [(1020)(9.8)-6678] (18.4+x) ?.. In that case, I did the quadratic and got x=17.33m, but still wrong answer :( argg

17 years ago

Ah, it's right. Thanks alot!

17 years ago

Try to make two equations, one for each phone company. First plan: y = .10x + 18 Second plan: y = .15x Try plugging in numbers until the two equations have the same y. If you need anymore explanations, just respond back. Hope I helped!

16 years ago

Are you asking about symbols used in ancient writing? If you are, an example is hieroglyphics (don't trust me that I spelled that right). Hope I helped you!

16 years ago

Thank you very much bobpursley! This has been quite the challenge to learn without the benefit of a teacher. I want to run my answers past and see if I have calculated correctly. energy= 250 * 2.5 = 625 Calories Then solar energy flux will be 250 *2.5 (62...

16 years ago

i got the magnitude i still don't get tan A = Fy/Fx can you explain thoroughly?

13 years ago

I got a different answer than all of you guys :P HINT: To actually visualize the problem, draw it out! :) Obviously the dimensions of the painting are: w and 3+w We know that the frame is 12 in wide, aka 1 ft wide. And we also are given that the total are...

13 years ago

I see! Thank you!

13 years ago

Another quick question, what is the ratio K2/K1 of their kinetic energies. Is, it just dividing the second bullet's KE to the first?

13 years ago

Could you divide 14 shirts into equal groups

13 years ago

1. First you need to find the slope of the original line you are given which is 3x + y = 6. The slope is -A/B so it is -3/1 or just -3, m = -3. 2. The slope of a line perpendicular is the negative reciprocal so the slope of the line perpendicular to the g...

13 years ago

EAD

13 years ago

thank you

11 years ago

ok thanks for your help and the tidpit of useful information

11 years ago

Basic structural unit of a DNA molecule is called a nucleotide. Basics structural unit an of RNA molecule is also a nucleotide. Basic structural unit of a polypeptide is called an amino acid. DNA is translated into RNA which is transcribed into amino acid...

11 years ago

The pizza is 12/12, meaning it has 12 total slices. If 5 people each had 2 slices (this is what 2/12 means) then: 5* (2/12)= 0.83= 10/12 10/12 is how much pizza was eaten. To figure out how much is left, subtract how much was eaten from the total. (12/12)...

11 years ago

Use a semicolon. Semicolons are used to separate two independent clauses. So it would something like: "In the nineteenth century, the middle class participated in revolutions to establish liberalism; one way was through literature, and through the revolut...

11 years ago

all 6 numbers add up to 55953.77 $2,023.60. $22,046.01 $8,161.59 $10,284.69 $11,023.01 $2,414.88 $55,953.77total The percent listened for 6 numbers above are in order as above are the percents that were calculated (which I don't understand how!) 4.0% 39.0...

11 years ago

So if m= max heart rate, which you know is 125. Then write the equation as. 125=176-0.8A. Now solve for A to get the persons age. You will need to round to get the answer.

11 years ago

What is your question?

11 years ago

So of your population is growing by 1%, then you need to know what 1% of 10,280 is. So 10,280 * 0.01= 102.8. To find the population in 5 years, add 5(102.8) to your starting population. Alternatively, you can just add 102.8 five times to 10,280.

11 years ago

To start with, you're not supposed to multiplying anything. M= 176-0.8A. M+ 0.8A=176. We know what m is, so the equation becomes 125 + 0.8A = 176. We rearrange the equation to be 0.8A= 176-125. Now to get A by itself, we divide both sides by 0.8 so then A...

11 years ago

woooow really mature. "yo moma" oh that's so funny...what are we, in third grade? it's "aflyerquacker"

11 years ago

I think it's A.

11 years ago

She really did cast the spell, but it could only be broken with true love's kiss.

11 years ago

She already has 140 beads. She wants a total of 200. 200-140= 60 beads. She'll need to get 60 more beads. Beads come in a bag of 10. So 60/10= 6 Sonya will need 6 bags (with 10 beads per bag) in order to have a total of 200 beads.

11 years ago

I followed the above instructions but I kept getting the wrong answer. (My homework is online) E=193(pi)(5.5E-2)^2(0.908)=1.6654 I=E/R=1.6654/0.241 ohms=6.9104 amps B= (4pi E-7)(193) (6.9104) 2(5.5E-2) B=1.8436 E-4 I redid the calculations multiple times...

10 years ago

How fast is she pumping the water? (how many gallons per minute)? You need that conversion factor (gallons per minute) in order to calculate the time it takes her to pump the 1850 gallons

10 years ago

Total tiles is 1075 (300+675+100) Divided by 450= 2.3889 Technically, you'd need 3 cans

10 years ago

You need to solve for B. 8b= -4.2 -23 What would you have to do next in order to get B by itself?

10 years ago

32/45= 0.7111 0.7111*100= 71.11% You pass because your score was 71 % out of 100 % (since 71% is greater than 60%)

10 years ago

Would the UNBALANCED version be N2 + O2 -> NO2 ??

10 years ago

I made 5/5 100% on this assessment. 1. C 2. B 3. D 4. B 5. D

9 years ago

What does x represent the smaller or bigger piece?

9 years ago

NM its 12 and 15 for anybody who need the answer:3

9 years ago

Number 3 is staff agency.

8 years ago

Amelia is correct!!

8 years ago

Zolita is correct!!

8 years ago

Hi Reiny, What would a, b and c be for the quadratic formula? Thanks

8 years ago

Answer in metres.

8 years ago

The numbers are x -4 -3 -2 -1 0 1 2 3 4 y 18 8 0 -6 -10 -12 -12 -10 -6

7 years ago

Separate the components of mixtures

7 years ago

1.) C 2.) A 3.) C 4.) B 5.) C Answers is correct! Thank you :)

6 years ago

Yes I love Billie elish too is correct trust me I got 100%!!! ♥️♥️♥️

6 years ago

1000 x 9% x 3years

6 years ago

Respect miss sue please!

6 years ago

i want it i got it

6 years ago

Respect the drip you answer were Wrong I got a very bad grade thanks a lot

5 years ago

The answers are 1. D 2. C 3. A 4. C 5. A 6. C 7. B 8. C 9. Figure it out yourself 10. A 11. C 12. C 13. A 14. C 15. D These are the real answers hope this helps!

5 years ago

1 D 2 C 3 A 4 B

5 years ago

The correct answer for this quick check are: C D A Not C D D get your facts right people

5 years ago

Thx Mr. Stinky

5 years ago

Guys stop cheating or you wont learn anything 90% of you are here for answer 10% of you are here to check you answers the people that come here for answers are probably not going to be smart because your not learning anything and you will need this inform...

5 years ago

Mckayla I know you from school we are in the same class and im going to tell the teacher I caught you cheating

5 years ago

Shay is right for connections (connexus)! 100%

4 years ago

Anna is still correct for honors English!! 2021

4 years ago

i was trolling lol

4 years ago

The girl above me is right on everything. I got 5/5. Thank you!

4 years ago

Yah, It is CDDC

4 years ago

M= 15 If this is the unit 2 lesson 9 sample work for connexus and the equation is on a graph with points A, B, and C

4 years ago

B C D A A D B C B C

3 years ago

Whoever said DBBDD.... YOU'RE AMAZING!!

3 years ago

1. Statements about the character's appearance, personality, and actions. 2. Because Buck refused to mush. 3. Convalescence

3 years ago

A summer camp is organizing a hike and needs to buy granola bars for the campers. The granola bars come in small boxes and large boxes. Each small box has 10 granola bars and each large box has 24 granola bars. The camp bought a total of 10 boxes that hav...

2 years ago

SCCA stands for South Carolina Connections Academy

2 years ago