05/15/19

Determine the dimensions of the 800 cc can that will be cheapest to produce.

The material for the top and bottom of aluminum cans sells for .02 cents per square centimeter, and the material for the thinner cylindrical portion of aluminum cans sells for .01 cents per square... more
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05/15/19

Prob and stats question help

Suppose 16% of listeners of a radio station listen to it while they are at work.What is the approximate standard deviation of the sampling distribution of the proportion for samples of size 72?
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05/15/19

Write a system of inequalities to represent this situation, and name one possible solution.
To qualify for a certain need-based scholarship, a student must get a score of at least 75 on a qualification test. In addition, the student's family must make less than $40,000 a year. Write a... more
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05/11/19

Help with math problem
You are planning to invest $500 at 12% compounded annually. How much money would you have after 10, 20 and 30 years?​10 yearsSelect an option $563.34$1,552.92$14,979.96$4,823.15$8500.03​20... more
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05/10/19

How do I evaluate the integral ∫ (x/(x^2+1)^2)dx?
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05/10/19

How do you convert the gradient of a linear equation to the angle it makes with the horizontal axis?
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05/09/19

find the x-intercept of a natural log function
find the x-intercept of the function y = ln(3x-2)^2.in order to find it, move the power 2 in front of the natural log. y = 2 ln(3x-2).for x -intercept, y = 0. Therefore, ln(3x-2) = 0. Hence, (3x-2)... more
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05/06/19

Short of collision, can gravity itself kill you?
Imagine that you are falling into object with huge gravity (i.e. black hole) that does not have any atmosphere. The question is - before you hit the ground, can the gravity itself (which would be... more
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05/03/19

Newtons 3. law. IF I use force on something and make it move, why don't I move as well?
This is not a homework question. Just a concept I read from my physics book that I can't get the hang of yet.Newtons 3. law Says for every action there is an equal but opposite reaction. Meaning if... more
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05/03/19

How many five card hands (drawn from a standard 52-card deck) containing a two-of-a-kind?

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05/01/19

How do I find the particular solution of y''(x) +5y'(x)-6y=0, x=0, y=4, y'(x) =11?
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05/01/19

How can I differentiate from the first principles cos x^2?
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04/29/19

Create an equation which models this situation if x = the number of hours he spent babysitting and y = the number of hours he spent mowing lawns last week.
John works two jobs. He earns $10 an hour babysitting his neighbor's children and $15 an hour mowing lawns in his neighborhood. Last week he worked a total of 20 hours and earned a total of $240
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04/29/19

Evaluate the logarithm at the given value of x

Evaluate the logarithm at the given value of xFunction Value f(x) = log(x) x=10,000
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04/29/19

For the piecewise function f(x) = a - 10x for x < sin(e); f(x) = bx^2 + 2 for x greater or equal to sin(e) how do you need to choose a(b) such that f(x) is continuos at x = sin(e)
In order to solve this I made both parts of the piecewise function equal, substituted x for sin(e) and solved for a. I got the answer a(b) = b*sin^2(e) + 10sin(e) + 2. However, I am unsure if my... more
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04/26/19

Can we convert a linear maximization problem containing one equality into a system of inequalities (linear program)?
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04/26/19

Jack bought ten CDs. A week later half of all his CDs were destroyed in a fire. There are only 22 CDs left. How many did he start with?
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04/26/19

You have 6 different colored skirts. What is the probability that when you place them randomly in your closet, that you will order them from lightest to darkest?
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04/26/19

Why is force a vector?
"We have focused our discussion on one-dimensional motion. **It is natural to assume that for three-dimensional motion, force, like acceleration, behaves like a vector.**"- (Introduction to... more
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04/25/19

The edges of an ice cube are melting at 6cm/min. How fast is the volume and surface area changing when each edge is 25cm.
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04/23/19

How do I solve this problem
If (3,6) is a point on the graph of y=f(x), what point must be on the graph of y=f(-x)? Explain.
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04/19/19

A rectangle is 3 miles longer than it is wide. Find the dimensions of the rectangle if it’s area is 247 sq-miles

Enter your answer as an expression to be calculated
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04/08/19

Physics car power question
A car is moving at 24.5 m/s and is being pushed by a force of 325 Newtons. How much power is being delivered to the car?
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04/03/19

Need help solving this equation using elimination
5x+4y=1-3x+4y=-7
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04/01/19

What is meant by "each region" in graphing trigonometric functions problems?
I'm doing some homework for a pre-calculus class and we're doing a unit on graphing trigonometric functions. The homework has a blank where I'm meant to fill in "each region" I don't know what this... more
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