Dan

When we are given an expression for the Short Run Total Cost Curve (for eg: 8 + 3Q - 1.5Q^2 + 0.25Q^3), how do you derive expressions for the following: 1. Average Fixed Costs 2. Average Viarable Costs Curve 3. Marginal Costs Curve 4. Short Run Supply Cur...

18 years ago

A tennis ball is a hollow sphere with a thin wall. It is set rolling without slipping at 4.07 m/s on a horizontal section of a track. It rolls around the inside of a vertical circular loop 90.0 cm in diameter and finally leaves the track at a point 20.0 c...

18 years ago

compare the collision of a baseball and bat with the collision of a baseball and a fielder's glove when the baseball is caught. During which collision is there a greater momentum change for the baseball?

12 years ago

Two questions: 1) NaCl+H2SO4+NH3=Cl2+? 2) KF+AgNO3+NH3=? I've been agonising over these for the past few hours, but can't seem to make any headway. Please help.

18 years ago

Photography - Two men and a woman are lined up to have their picture taken. If they are arranged at random, what is the probability that (A) the woman will be on the left in the picture? (B) the woman will be in the middle in the picture?

18 years ago

I have a project and part of it has to do with revenue, demand and profit. I know that Revenue=price x quantity but can profit equal price x quantity demanded? I have both written down and I am getting confused because I was supposed to find the profit bu...

18 years ago

So there is no way profit = price x quantity demanded because I have q=-60p+950 and Revenue or profit=-60p^2+950p. I then have to find out the profit made by selling things at 5.50, 10 , and 15 dollars. I was told to plug these numbers into -60p^2+950p to...

18 years ago

Trying to help with 6th grade homework. All I know is the assignment is to write mirror adjective words? Not sure what this means, any suggestions?

18 years ago

With regard to pattern baldness in humans (a sex-influenced trait) a woman who is not bacld but mother is bald, has children with a bald man whose father is not bald. what are their probabilities of having the following types of families? a) their first c...

17 years ago

A container initially has 0.0186 M ammonia at a certain temperature. When the system reaches equilibrium the concentration of ammonia is 0.0035 M. Calculate Kc for the following reaction as written. N2(g) + 3H2(g) --> 2NH3(g)

17 years ago

The equilibrium constant for the reaction of bromine and chlorine to form bromine chloride under certain conditions is 4.7x10-2. Cl2(g) + Br2(g) --> 2BrCl(g) K= 4.7 x 10-2 What is the equilibrium constant for the following reaction under the same conditio...

17 years ago

I have to discuss the growth of modern technology's impact on transaction costs. What points do you think I should discuss?

17 years ago

Change in enthalpy problem. Consider the reaction represented below. Referring to the data in the table below, calculate the standard enthalpy change for the reaction at 25 degrees C. O3(g)+NO(g)-->O2(g)+NO2(g) Standard enthalpy of formation in kJ/mol: O3...

17 years ago

Can some one check it Choose apiece of literature you have read and describe how it has affected you. For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. We think of the buying and selling of pe...

17 years ago

A firm with monoply power has the demand curve: P = 100 - 3Q + 4A^1/2 And has the total cost function: C = 4Q^2 + 10Q + A where A is the level of advertising expenditures. P is price, Q is output. How do I find the values of A, Q, and P that maximize the...

17 years ago

A monster storm located 1200 km north of Hawaii generates wind waves with maximum wavelengths of 150 m. Calculate how much time you have to get to the north shore and surf the first big waves. Assume that the average depth of the North Pacific is 3800 m,...

17 years ago

If you're familiar with James Baldwin please help me. I need to identify his writing style. So far I got something in between stream of consciousness and lots of poetic devices but I think I need something more concrete than that. HELP?

17 years ago

Evaluate the function at the given value of the independent variable and simplify. f(x) = 2x2 - 5x + 6; f(x - 1)

17 years ago

complex models are always better than simple ones. true or false?

17 years ago

what are three disadvantages of HIPAA?

17 years ago

What is Dalton's law of partial pressures? Explain how this law relates to the fact that mountain climbers must carry tanks of oxygen when scaling high peaks.

17 years ago

A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15 degrees C. What will the volume of the balloon be if the temperature is increased to 80 degrees C and the pressure remains constant?

17 years ago

How did the Founders expect to promote civic virtue in a country as large and diverse as the United States?

17 years ago

Two different isosceles triangles with perimeter 4a+b? Is this a right angle isosceles triangle?

17 years ago

The left and right - hand margins on a sheet of paper are both 1.25 inches wide. The total width of the sheet t of paper is 8.5 inches. Write and solve an equation to find the width of the text area that lies betwen the margins.

17 years ago

Fluffy, Spot and Champ combined dog years is 91. Spot is 14 years older than Fluffy, Champ is6 years older than Fluffy. Write and equation and solve how old Fluffy is? Thanks

17 years ago

If the column of water in the water bormeter rose to a height of 35 feet, what would the atmospheric pressure be in mm Hg?

17 years ago

How do you express the number 6 as two significant figures?

16 years ago

When you cough, your windpipe contacts. The speed v, with which air comes depends on the radius,r, of your windpipe. If R is the rest radius of your windpipe, then for r </= R the speed is given by: v=2(R-r)r^2 i got the derivative: v'=4rR-6r what do i do...

16 years ago

what is the derivative of 1/x??

16 years ago

what is the derivative of 1/x??

16 years ago

While shopping for an air conditioner, Adam Bryer consulted the following table giving a machines BTUs and the square footage that it would cool. Ft^2(x) BTUs(y) 150 5000 175 5500 215 6000 250 6500 280 7000 310 7500 350 8000 370 8500 420 9000 450 9500 a....

16 years ago

t 2 4 6 8 10 12 v(t) 44 42 41 40 37 35 the velocity in the table is decreasing 2 </= x </= 12. Using n=5 subdivisions, approximate the total distance traveled for: a) an upper estimate b) a lower estimate i'm not quite sure what the question is asking. i...

16 years ago

find the following derivatives: f(x) = (2x+5)/(x^2-3) f'(x)= (2)*(x^2 -3)-(2x+5)*2x/(x^2-3)^2 is that correct??? f(x)= (lnx)(cos x) f'(x)= 1/x*-sinx or do i have to use the product rule?? thank you.

16 years ago

What is the probability that 4 rolls of fair die will show three 4's? the answer is 0.015, but I don't know how to get it.

16 years ago

Show that y= x + sinx-pi satisfies the initial value problem dy/dx=1 + cos x, y(pi)= 0 i don't understand how to do this problem. i don't know where to begin.

16 years ago

A 0.250 kilogram box has a speed of 2m/s when it is 1.2 meters from a second mass. It is sliding on a table with a coefficient of friction of 0.20. The box collides and sticks to a 0.5kg box that sits on the end of the table, causing the boxes to fall. Ho...

16 years ago

Which would be more effective in breaking a rope: 2 people pulling a rope tug-of-war style, or 2 people pulling the same end of the rope with the other end tied to the wall?

16 years ago

What cell structure/organelle would be especially common in i)cells lining the respiratory passages? ii)white blood cells that engulf and detroy invading bacteria iii)enzyme (protein) secreting cells of the pancreas

16 years ago

The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10. a. Compute the range. b. Compute the mean deviation. c. Compute the standard deviation.

16 years ago

Imagine there is a large boulder on the edge of a shoreline. If a wave period is 15 s long. how many times is the boulder hit in a year? Thank you

16 years ago

Organisms on a rocky shore compete for all of the following except? 1) Affection 2) Nutrients 3) Space 4) Light I think the answer might be light but im not sure.

16 years ago

What is the domain of f/g? f(x)= x over x+1, g(x)=x^3 I have no idea how to figure this out!

16 years ago

Compare the graph of the function with the graph of f(x)=|x| y=|-x|

16 years ago

Use the functions f(x)=1/8x-3 and g(x)=x^3 to find the indicated value or function. (g^-1 X f^-1)(-3)

16 years ago

use the functions f(x)=x+4 and g(x)=2x-5 to find the specified functions. (g X f)^-1 Would the answer be x+1 over 2?

16 years ago

Find f X g 3 sqrt of x+1 X x^3+1

16 years ago

E=hf-w w=? My answer was E/hf but I think this is wrong.

16 years ago

E=hf-w w=? The answers are: -E/hf E+hf hf-E

16 years ago

F=Gm^2/r^2 G=? The answers are: Fr^2/m^2 sqrt(F)m/r sqrt(F)r/m

16 years ago

What Net Force is necessary to give a 2.0 kg mass initially at rest an acceleration of 5.0 m/s^2? Is the answer 10. N?

16 years ago

The bus fare in a city is $1.75. People who use the bus have the options of purchasing a monthly coupon for $29.00. With the coupon book, the fare is reduced to $0.75. Determine the number of times in a month the bus must be used so that the total monthly...

16 years ago

I can't fully understand Fermat's principle of least time (the modern version)

16 years ago

Hello I did my math homework, but I need someone to check if I did it right or not. 1. A = z>=4 B = z<7 Write A or B and A and B using interval notation Answer: A or B = (-infinity, infinity) A and B = [4,7) 2. Write the algebraic expression for the follo...

16 years ago

I have to write an essay, but I have no idea how to start it. It says that my essay has to be MLA formatted, and only 3/4 to 1 page long. 2 page is the longest it can be and must be double placed. Using MLA format, there's is no way for me a write a prope...

16 years ago

Hello, I was wondering if you could read my essay and tell me what you think i could do to improve on it. The problem is, I do not want to put it on the internet, so is there a way I can email you my essay?

16 years ago

what can be a represent as a necleus in a room. and WHY

16 years ago

A 300 ball swings in a vertical circle at the end of a 1.2-m-long string. When the ball is at the bottom of the circle, the tension in the string is 13 . What is the speed of the ball at that point?

16 years ago

A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 7.0×10−3 less than that at sea level. What is the observatory's altitude?

16 years ago

I have to simplify this: (y^(1/4)*Z^4)^(-4/5) My answer: (2z)^(1/2)/4z^4 Correct? Simplify (3-2SQRT2)(SQRT6-5) I have no idea how to foil this one.

16 years ago

With what minimum speed must you toss a 160 ball straight up to hit the 15 -high roof of the gymnasium if you release the ball 1.7 above the ground? Solve this problem using energy.

16 years ago

A 710 kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0?

16 years ago

What minimum speed does a 150g puck need to make it to the top of a 3.6m -long, 23 degree frictionless ramp?

16 years ago

An elevator weighing 2400 N ascends at a constant speed of 5.0 m/s. How much power must the motor supply to do this?

16 years ago

how do you convert mg/ml to mg/100mol

16 years ago

Selfish in a sense that most of us fall upon reacting against the injustice of the world upon reacting against the injustice of the world. should there be an "s" at the end of fall?

16 years ago

Ball 1, with a mass of 100g and traveling at 12 m/s , collides head on with ball 2, which has a mass of 340g and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of each...

16 years ago

A proton is traveling to the right at 2.5×10^7m/s . It has a head-on perfectly elastic collision with a carbon atom. The mass of the carbon atom is 12 times the mass of the proton. What are the speeds of each after the collision?

16 years ago

A 190 g air-track glider is attached to a spring. The glider is pushed in 9.8 cm and released. A student with a stopwatch finds that 14 oscillations take 18.5 sec. What is the spring constant?

15 years ago

This is a four part question, I need help with the fourth part. 1. I found the Gravitational Potential Energy of a gymnast at her maximum height above a trampoline to be 400J. 2. I found the Kinetic Energy of her just before she makes contact with the tra...

15 years ago

Could some please tell me if I did these problems correctly? (I know that I did not Cancel common aqueous ions yet) Question: Write the net ionic equation for the following 1)Mixing solution of barium acetate and sodium phosphate 2)Mixing solution of thal...

15 years ago

fill in the blank. The freezing point of a solution is_____ and the boiling point is ___________ than that of a pure solvent. lower...higher?

15 years ago

What is the expected freezing point of a 3.50 m aqueous solution of BaCl2 (Kfp=1.86C/m)? What is the boiling point (Kbp=0.512C/m? & which is affected to the greater extent, the boiling point or the freezing point?

15 years ago

I answered several question for an assignment and I need help to understand how I got it wrong. The assignment dwelt medical terms. The following three were marked wrong. Please help! Use the word bank below to build the medical word that corresponds to e...

15 years ago

How would you graph the inequality x > -5

15 years ago

I need to pick a term paper topic involving American History. I want to do something about a controversy during a war time, but I don't know what to pick. Maybe something during the Vietnam War or the Gulf War? Where could I find thesis ideas or do you ha...

15 years ago

An element has bcc packing with a body-centered cubic unit cell. Its density is 19300 kg/m3 and the unit cell volume is 3.17 x 10-26 L. Calculate the molar mass (g/mol) of the element to three significant figures. The element rubidium has bcc packing with...

15 years ago

Examine three elementary schol textbook and report on how the introduction of the topic of GCD and LCM differ in the diffrent textbooks?

15 years ago

Midsummer Night's Dream: The fourth act opens with Bottom at center stage. What is your opinion of Bottom's character? How might he be the antithesis, or opposite of Theseus's character?

15 years ago

Explain the importance of understanding inventory valuation methods in dertermining the quality of the profit

15 years ago

Which test for iron(II) ions is conclusive?

15 years ago

According to Sal's map he is is 6 units away from the grocery. The grocery store is 5 units away from the coffee shop. The coffee shop is 1 unit away from Sal's house. How is this possible?

15 years ago

R^2 + R^2 + 16R + 64 = 144 solve for R.

15 years ago

How many moles of PCl3 can form from a mixture of 5 mol of P and 6 mol of Cl2 according to the equation 2P + 3Cl2 ¨ 2PCl3

15 years ago

What is the molar solubility of silver sulfide, Ag2S? (Ksp for Ag2S is 6.0 x 10^51.)

15 years ago

Is 20.0 mL of 3.0 M HF a buffer solution with an approximate pH of 3?

15 years ago

It took a stopping train 41/4min to travel between two stations 11.2km apart.The train accelerated uniformly during the first 11/4min of the journey,and decelerated uniformly to rest during the last 3/2min of the journey.The train had moved with uniform s...

15 years ago

You are offered two different sales jobs. The first company offers a straight commission of 4% of the sales. The second company offers a salary of $ 500 per week plus 2% of the sales. How much would you have to sell in a week in order for the straight com...

15 years ago

.In the early 1900s, two associates of New Zealander Ernest Rutherford bombarded thin sheets of gold with positively charged subatomic particles. They found that most of the particles passed right through the sheets but some bounced back as if they had hi...

15 years ago

Using a telescope, which planets acn be observed from Earth in a crescent moon phase?

15 years ago

How much heat is released when one gram of toluene burned?

15 years ago

How many liters of carbon dioxide at 20 oC and 750 torr are produced when one gallon of toluene is burned

15 years ago

How many liters of carbon dioxide at 20 oC and 750 torr are produced when one gallon of toluene is burned? Convert liters to milliliters and then to grams. can you convert mil to grams?

15 years ago

Suppose you put 50mL of water in the can instead of 100mL and heated it to 40 degrees instead of 20 degrees. In what ways, if any, would this afect the results of the experiment? What would happen if you used 200mL of water and heated it only 10 degrees?...

15 years ago

Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. This question is really confusing me, and I'm not sure where to start. I think I have to calculate the moles of each given reactant first in whi...

15 years ago

Find the indicated absolute extremum as well as all values of x where it occurs on the specified domain f(x)= x^2e^-0.25x ; [3,10]

14 years ago

Find all extrema, inflection points, and asymptotes where applicable f(x)= 2x^3-12x^2+18x I got 0, 8 for extrema 2, 0 for I.P and I don't know how to find asymptotes

14 years ago

P(x)= -x^3+15x^2-48x+450, x>/3 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. find the number of hundred thousands of tires that must be sold to maximize profit.

14 years ago

what is a prime factor? How do I find the prime factor?

14 years ago

A cone of radius r centimeters and height h centimeters is lowered point first in at a rate of 1 cm/s into a tall cylinder of radius R centimeters that is partially filled with water. How fast is the water level rising at instant the cone is completely su...

14 years ago

1) Yes, Cl2 is definitely produced, we could see it, it stung our noses and we tested the gas. I know it's annoying, but please help! 2)Thank you!

18 years ago

so I don't have to do any Permutations right? just a simple Pr(E)=n(E)/n(S)

18 years ago

thanks =)

18 years ago

So there is no way profit = price x quantity demanded because I have q=-60p+950 and Revenue or profit=-60p^2+950p. I then have to find out the profit made by selling things at 5.50, 10 , and 15 dollars. I was told to plug these numbers into -60p^2+950p to...

18 years ago

Thanks, that's what I got :)

17 years ago

Ok, so I have DeltaHrxn=(X+90)-(143+90). How do you calculate the enthalpy of O2 (X above) when it is not given to you. Am I even doing that right?

17 years ago

For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. We think of the buying and selling of people, their shipment from one continent to another and the abolition of the trade in the early 1800s....

17 years ago

my essay is longer but it won't paste

17 years ago

Well 3x * x^2 = 3x^3 So now you have 3x^3 = 4 then x^3 = 4/3 so x = the cubed root of (4/3)^(1/3) Where ^ indicates "to the power of".

17 years ago

Whoops, the answer should just be x = (4/3)^(1/3) or x = the cube root of (4/3) Bad grammar :P

17 years ago

The "square root" of a number simply means the number is raised to the power of 1/2 or 0.5. So your question becomes (((125)^1/2)^4)^1/6 When you have exponents beside each other you simply multiply them. So the question becomes 125^(0.5*4*1/6) = 125^(1/3...

17 years ago

Did you teacher actually say that's why you lost 2 marks? It might have been lack of decimal place(s) or an incorrect answer. Triangles can definitely have decimal angles.

17 years ago

5^3 = 125 So how do we get 125^(1/3) from this? Simply take the cubed root of both sides. (5^3)^(1/3) = 125(^1/3) What then, must the cubed root of 125 be?

17 years ago

No problem :)

17 years ago

I'm assuming length is depth. A rectangular solid has 6 sides, so the total area will simply be 6 times the area of one side. The area of one side is the area of square which is w*h. The volume of a rectangular solid is l*w*h. From Google, "The lateral ar...

17 years ago

"If the sequence An converges to 0, and each An is smaller than An-1 (i.e. the sequence An is monotone decreasing), then the series converges." In this case, An = 1 / (3n + 1) The limit as n->infinity (An) = 0 A1 = 1 / 4 A2 = 1 / 7 Therefore, by the Alter...

17 years ago

Whoops, I read those numbers wrong. The area of two sides will be l*h and the other four will be w*h. So the total area = 2(l*h) + 4(w*h) Sorry about that :S

17 years ago

First you have to expand your terms. 7y^2 - 5y^3 - 180y^2 - 55 = -100 Collect like terms. -5y^3 -173y^2 = -45 now factor the y^2 y^2(-5y - 173) = -45 There are two solutions to this equation. y = 0 and 5y + 173 = 45 which yields y = -25.6

17 years ago

n is the number of moles. It's usually equal to one to simplify matters.

17 years ago

For a right angle triangle the following equation is true: a^2 + b^2 = c^2 Where c is the hypotenuse of the triangle and a,b are the other sides (you decide which side is a and which side is b).

17 years ago

I'm not familiar with that particular term, but mach number .85 could possibly mean 0.85 times the speed of sound.

17 years ago

What exactly is your question? I don't even see a denominator anywhere :) What you have is right so far. If you want to finish that question you need to use the quadratic formula x = (-b +/- square root(b^2 - 4ac)) / 2a x = (5 +/- square root (25 + 192))...

17 years ago

Your solution is perfect, did you just want confirmation?

17 years ago

To answer Writeacher, we didn't say that there weren't similarities, we just said that they aren't the same religion. I can say quite firmly that Judaism and Christianity are not too similar, let alone Islam and Christianity. I would not say that Jews and...

17 years ago

emf sets top most node to emf V. Nodal at top node: (emf - V)/5 = 2A => emf = 43V ohms law at top node: (43V - 33V)/12 = Current right branch = 0.83A Current in left branch = A + 0.83 = 2.83A R = 33/2.83 = 11.66 Ohms Although, this question is a little od...

17 years ago

No problem ^^

17 years ago

Does anyone have anything on this?

17 years ago

okay. The 10 g mass was throwing me off.

17 years ago

Thank you. Dan

17 years ago

i got -1/x^2 but i don't think that is correct.

16 years ago

2yrs later no answers? I don't get how this is any different than asking a friend for help. I don't think it is plagiarism. I have the book. This is the only reference to MERCOSUR and its in a section labeled "Take it to the Web"... "Do you think Argentin...

16 years ago

3 choices x 5 choices = 15

16 years ago

temperature - noun

16 years ago

Not enough information. However, if the problem gave Harry's total amount of money, or a percentage based on the 12 dollars spent, it would be solvable. Think about how you would solve it if this information was given.

14 years ago

Citric acid is a moleule with entirely covalent bonds. Covalent componds can dissociate (weakly) into ions in solution, after all water itself dissociates to a small degree. Citric acid is an organic acid; it does dissociate (weakly) however the bonds tha...

16 years ago

Use the functions f(x)=1/8x-3 and g(x)=x^3 to find the indicated value or function. (g^-1 X f^-1)(-3)

16 years ago

Boyfriends/girlfriends come and go. Abstinence is a one shot deal. Also, someone that is pressuring you to do something you don't want to do probably isn't a good person to be going out with.

16 years ago

H=7 -8 cos (2 pi t/3) seems correct, I didn't check your math though. If H is the height of the initial point after t seconds, simply set t = 5.5 seconds and solve for H. H = 7 - 8 cos(2pi*5.5/3)

16 years ago

what's a point of inflection

16 years ago

the answer's b totally

16 years ago

typo # 4 answer = -5,9

16 years ago

(4c+2)+(5c) = 92 9c + 2 = 92 9c = 90 c = 10 So there are 10 chairs in each row Alexi set up a total of 42 chairs including the extra 2. Martin set up a total of 50 chairs. 42-(2*4) + 50-(2*5) = ?? 92 - 18 = ???

16 years ago

If I start the introductory paragraph to: As a candidate for National Honor Society membership, I believe that I exemplify the high standards expected of its members. Would I need to add on more to it to make it a little bit longer? I was thinking about a...

16 years ago

Also whats a good way to end your paragraphs? do i just restate what i wrote?

16 years ago

My Prof. used the equation ---- (G*Me)/((Re+h)^2)=g' He said to solve for h which is what I did but it didn't work. Suggestions?

16 years ago

An improper fraction is usually something over something. The numerator in a improper fraction is usually larger than the denominator. =10*12+5/12 =125/12 =31/3

16 years ago

hahaa.. funny. I had to show the calculations for each step. So are you suggesting that I just state that this proves the Conservation of Energy?

15 years ago

I thought I put it as soluble, because I broke it up to 2Ti+(aq)and SO42–(aq. Correct me if I'm wrong. Is the rest okay?

15 years ago

If the sine of an angle is 3/5 and the angle is not in quadrant 1, what are the remaining five trigonometric values for that angle?

15 years ago

can't convert ml to grams

15 years ago

1 gallon toluene = about 3,785 mL density = about 0.867 g/mL mass toluene = 3785 mL x 0.867 g/mL = 3282 grams. C7H8 + 9O2 ==> 7CO2 + 4H2O moles toluene = grams/molar mass = 3282/92 = about 36 moles. From the equation above, 1 mole C7H8 will produce 7 mole...

15 years ago

I'm not understanding. what do you mean figure the moles of H2O2 in 3.4 g of water? You get the same number of moles of water? I calculated: nH2O2 = 3.4g/34.02g/mol= 0.0999412 mol Water on the other hand has 18.02 mol sorry but I'm not understanding. I th...

15 years ago

39 Pa for each of 4 blowers; 26 Pa for each of 6

15 years ago

4/5-7/8/10-7/10+1/2=6/10+1/5=8/10

14 years ago

i still did not understand. if u don't mind could you please explain it again and also the question asks for the intervals and the points. could you give the intervals and points for the the questions above in the questions .. Thanks a bunch :).

14 years ago

thanks, I see where I messed up at...

14 years ago

how did you get x to equal 400

14 years ago

could you please solve the problem completely .. i am still confused. Thanks.

14 years ago

thanks!

14 years ago

i've read most of these sites but couldn't really make sure of my answers i mean for example number 1 i was and still is confused between a and d ... i am not really able to comprehend the question. do you think my answers are right? it would really help

14 years ago

thank you...

14 years ago

Thanks, I wasn't able to get the second part of the answer (got a spring constant of 24.21 N/m) correct though.

14 years ago

For the second part, since this is a sine function, there's a particular angle that would have the same value as 0.8333. Like sin(0 deg) and sin(180 deg) equals to 0. So I did 180 - 56.4 to get that particular angle. Once I got that, I converted it to rad...

14 years ago

velocity is speed with direction For example.... An airplane is flying East at 300 miles per hour Its speed is 300 miles per hour Its velocity is 300 miles per hour East

14 years ago

Frequency is the number of waves that pass by in one second. You know that 8 waves pass by in 30 seconds. How many pass by in 1 second? Period is the time it takes for one wave to pass by. Period is the inverse of frequency (T = 1/f). Wavelength is the di...

14 years ago

This problem can be solved with the conservation of energy. The total amount of energy in the car is the same before and after the collision with the spring. The car's kinetic energy before the collision is completely converted to spring potential energy...

14 years ago

Make an estimation of how many weeks are in a month. Calculate how many total weeks there are in 8 months. Multiply the weekly gas expense by the total number of weeks.

14 years ago

Thanks a lot man!

14 years ago

Thank you!!

14 years ago

Start early - plant germination takes time regardless of the plant. Also you must be sure to replicate each plants environment as much as possible. Same potting soil, same sunlight, same amounts of liquid at the same time. Also you should have a control g...

14 years ago

The best thing I have done for conversions throughout all of my education was learn this saying: Kings over Humans over Dragons over Dogs over Cats over Mice (or if you prefer: "King Henry Died Drinking Chocolate Milk) broken down that gives: K H D * D C...

14 years ago

Kelly takes 6 laps and Angela takes 5 laps so they both meet at the starting point at 90 minuets...1 hour and 30 minuets.

14 years ago

future

14 years ago

Thanx

14 years ago

V of cube = side*side*side = 6*6*6 = 216 V of hemisphere = 1/2 of V of sphere = 4/3*pi*radius cubed = 1/2(4/3(pi 3cubed))= 1/2(4/3(pi 27)= 1/2(36pi)= [18pi meters] or [56.52 meters]

14 years ago

20+d+10 where d=30, 20+30+10=60minutes or 1 hour

14 years ago

thanks

14 years ago

Block method: 8 teachers for 5 courses [#]*[#]*[#].... [8]*[7]*[6]*[5]*[4]= ?

14 years ago

monitoring of reports of communicable diseases in the community types: descriptive and analytic epidemiology is used to determine such

14 years ago

No Calculator Necessary. Age 0: 0 Ar40 Age 1.25 billion years: half of the K40 is now Ar40, so 1 part of K40 and 1 part of Ar40 Age of 2.5 billion years: one quarter K40 and three quarters Ar40; so 1 part K40 to 3 parts of Ar 40

14 years ago

What is the solution?

14 years ago

84.86

14 years ago

2-orient 4- 5-discern

14 years ago

No idea

14 years ago

thanks i wish they were in my book

14 years ago

when testing for antimony, what reagent prevents tin from reacting with the H2S to form SnS2? What reagent is used to identify copper and explain its function.

14 years ago

Post one or two new concepts you learned from each of the PhxKlips

14 years ago

x=speed of boat in still water. assuming the problem implies 26 miles each way. to figure this out, I wrote this out in simple miles per hour terms. Example: (hours/mile)*miles + (hours/mile)*miles = hours so: (1/(x+5))*26+(1/(x-5))*26=10.6 x+5 represents...

13 years ago

[german] Sie sind sehr hübsch. = [en] You (formal) are very beautiful.

13 years ago

Yup. Some English here, please :) ... Would help a lot.

13 years ago

1. Paragraph about some event in the past and how I reflect on it - What do you want to write about? - What don't you know? 2. Wetter - vocabulary? 3. Jahreszeiten - Frühling, Sommer, Herbst und Winter? 4. Partizip - mit|machen - auf|passen - an|kommen -...

13 years ago

Actually, it is "Mein Name ist ... " or better and not as awkward (as being the correct German phrase) "Ich heiße ...".

13 years ago

"My mum has black hair and dark brown eyes. She is very tall. She is very caring but can be quite mean sometimes. Meine Mutti hat schwarze Haare und dunkel braune Augen. Sie ist sehr hoch. Sie ist sehr fürsorglich, aber sie kann manchmal recht bedeuten. M...

13 years ago

5. También yo recibí/he recibido muchos regalos de mi familia.

13 years ago

Dig

13 years ago

does not suggest that Catherine goes to see every romantic comedy that plays at her local movie theater

13 years ago

It connects the black Sea to the Sea of Marmara. so your answer is accurate

13 years ago

pH = pKa + log([A-]/[HA])

13 years ago

Cost ($) = Power (kW) x Price ($ / kWh) x Time (h) Cost ($) = (0.006 kW) x ($0.12) x (365 days/year x 24 h/day) Cost = $6.3072

13 years ago

Simply 5 hours.. 125 miles/25 miles/hour = 5 hours

13 years ago