12/28/14

the angle of elevation from the top of the tower from a distance 50m from its foot is 30degrees then find height of the tower
i am not getting exact triangle
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12/18/14

Systems of equations : word problems
Need to know set up of the equation and answer. You purchased office supplies for your business. Plain copy paper is $4.50 a pack and bright paper costs $7 a pack. If you purchased 28 packs of... more
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12/18/14

I just need to know the set up of the equation . The topic is system of equations .
The movies charges $5 for a child's ticket and $8 for an adult ticket. You take 11 people to the movies for $73. How many were children and how many were adults? I just need to know the set up of... more
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12/17/14

Interest on $180 for one month is $45. What is the annual percentage rate?
I have no additional information.  I tried computing the rate of interest for 1 month and got 25%.  Then I tried to compound the interest rate (.25 tothe twelfth   power).
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12/16/14

what is the system of inequalities that that would have this triangle as its solution?
a triangle has vertices (0,-2),(7,-2), and (4,1)
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12/14/14

Size of scuba diving tank (Boyle's Law)
This question is confusing me as I don't know what I'm looking for"A popular size of scuba-diving tank holds the amount of compressed air that would occupy 71.2 ft^3 at a normal surface pressure of... more
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12/11/14

A superball with velocity and collision
A 5.0 kg superball moving at 3.0 m/s through space collides with a second stationary 15 kg superball. If the first superball comes to a stop, what is the velocity of the second superball after the... more
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12/05/14

If a quantity increases 25% then decreases by 25%, will the result be the original quantity? Explain.
Would it be the same and why or why not?
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12/01/14

Formulate and solve problems involving quadratic equations
Two squares have a combined area of 41m2. The sum of their perimeter is 36m. Determine the length of the side of each square.   Can you show me the working please?
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11/28/14

A definite integral from 0 to x of t^7 dt: , f'(x)=? f'(7)= ?
Appreciate the help
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11/17/14

if the confidence level was changed to 99.4% what would be the critical value z*
I just need to know exactly how to set this up.
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11/17/14

Linear Programming?
My book explains linear programming in the most confusing way that I don't understand and my teacher did not go over this at all! I'm so lost I need help:/ I have a problem that says "You are... more
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11/16/14

what is the slope and y- intercept of the line whose equation is 4x + y = - 4
I have been struggling at graphing the last two weeks 
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11/06/14

The flash drive that came with a windows 8 computer will not show up on the windows 7 computer. Why?
Flash drive wont show up on windows 7 computer
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11/05/14

what happens to total energy as an object speeds up? does it increase, decrease, or stay the same?
I just need help answering this question for a physics lab.
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11/02/14

Trigonometry Problem
Find the exact value of sin(θ/2),given that tanθ = (8/15) and π<θ<(3π/2)   π=Pi   θ=Theta
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11/02/14

complex zeros?
My teacher hasn't taught complex zeros yet and I can't find it anywhere in the book. It says find the complex zeros of the function f(x)=x3-4x2+25x-100. If I know how to find the zeros I can do the... more
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10/30/14

The following set of points defines a function: (3, 6), (-4, 1), (5, -5), (9, -6), (10, -2), (-2, 10).what is the equation
i need help finding the function
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10/29/14

2 people start moving from the same point. One north at 3 m/s and one east at 4 m/s. At what rate is the distance between the two increasing 2 seconds later.
Please show me how you got the answer.
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10/26/14

What must be the length and the diameter of this wire?
Suppose you wish to fabricate a uniform wire from a mass m of a metal with density Pm and resistivity p. If the wire is to have a resistance of R and all the metal is to be used, what must... more
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10/26/14

Solve the equation
On a recent test, Jeremy wrote the equation x^2 - 16 /x - 4 =+4 . Which of the following statements is correct about the equation? A. The equation is always true, except when x=4. B. The equation... more
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10/24/14

Toyland is having a sale. All items are 20% off. How much will you save on an item that usually sells for $95?
I don't really know how to explain or find the answer. Please help. And explain the steps in solving. Thanks   I am in the 6 grade
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10/23/14

I nedd to find the variation of the equation and solve it
The winds in southern California contain wind generators whose power production varies directly with the cube of the winds speed. if one such generator produces 1000W of power in a 25mph wind, find... more
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10/22/14

Explain how to determine the slope of the tangent to the curve f(x)=5/(x^2+36) at x=0
12th grade advanced functions math
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10/18/14

Can you help me solve this problem. calc 2 problem. I think im suppose to use trig substitution.......i think.
∫ x/(x2 +1)2 dx   Limits equal ∞ on top and 1 on the bottom
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