04/16/13

Hot Air Balloon
An object is dropped from a hot-air balloon 1296 feet above the ground. The height of the object is given by h=-16(t-9)(t+9) Where the height H is measured in feet, and the time T is measured in... more
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04/14/13

When I was trying to get the volume of a solid obtained by rotation by integrating and plugging b in I got 0 for the volume. Thatt has to be wrong
Help  
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04/13/13

getting frustrated with this problem have been working on it for two days and can't figure it out
w = 33 - (10.45 + 10√V - V) (33 - T over 22 and W is wind chill temperature (temperature with no wind) and T is actual temperature in Celcius, V is wind speeds in m/sec a) T = 10 degrees... more
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04/13/13

how towrite a polynomial equation to model a 4 th degree polynomial with functions values of 0,,5 10, and 15
suppose that you are told that a good model for a situation is a 4th degree polynomial. You know that the function must have values of 0 for the input of 0,5,10,and 15.Write a polynomial equation... more
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04/11/13

I start college in may and i dont understand anythig about algebra
I graduated in 1988 i only learned adding subtracting and multiplication and division i start online classes in may and i dont understand anything about algebra
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04/09/13

convert 240 seconds to hours
covert 240 seconds =     hours. round to the nearest thousandths
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04/08/13

find the inverse of y=square root of x-2
no other details?
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04/06/13

symmetry of graph
f(x)=4x^2 +5  A)y-axis   B)Origin C)x-axis  D)no symmetry
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04/06/13

What is the best way to study Math and understand it
Math has been my begest problem through out my high school. Now I have to study college maths and it is so difficult for me. It's there any better aproach to studing and understanding maths.
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04/05/13

what does it mean "the expression can be rewritten by writing subtraction as the addition of the opposite ?
if 3x2-5y+2xy-x-7 do I change the + to - and the - to + I have never taken these courses before and my instructor explains it so fast I didn't understand ?
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04/05/13

Physics Problem
A 15-g CD with a radius of 7.5 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy?
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04/05/13

Physics questions
If the angular speed of the Earth as it spins about, its axis is 7.27 x 10-5rad/s. How many rotations the Earth can make in 24 hours?
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04/04/13

If (4X+2)(2x-3) is written in standard form, what is the value of C?
helpppppp math pleaseee
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04/04/13

Which value of X is in the solution set of the inequality 36X+7<16?
mattth heeeeelpppp
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04/03/13

Four times the square of a number is 45 more than eight times the number. What is the number?
Four times the square of a number is 45 more than eight times the number. What is the number?
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04/03/13

prove that 1 - 2 sin^2x/cosx + sinx + 2sin x/2cos x/2 = cosx
Please solve the left side to equal the right. 
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04/02/13

Write an equation of the line tht passes through the given point and is perpendicular to the graph of the given equation?
Write an equation of the line that passes through the given point and is perpendicular to the graph of the given equation?1. (-9, 3); 3x + y = 52. (-8, 3); y +4 = -2/3(x-2)3. (3, -6); x + y = -4
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03/31/13

4x/(2x+3)+6/(2x+3)
How can I simplify this equation?
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03/26/13

Polynomial Help Please!!!!!
how much wood could a woodchuck chuck if a woodchuck could chuck wood? JK. I really am confused on polynomials. How do you find the standard form of one?
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03/26/13

What's a ray?
Identifying points, lines segments and rays  
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03/26/13

Can anyone help me with these science questions on Astronomy: Earth and Space Systems/ The Solar System?
Most of the frozen ice in a comet's ______ vaporizes after the comet's many trips around the sun. The Sun produces energy by fusing hydrogen atoms, into _____ atoms in its core. Planets were... more
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03/26/13

6/(x+4) - 2/(x-3) = 3
used lowest common denominator to find x
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03/26/13

physcis question
Two blocks, each of mass m, are connected on a frictionless horizontal table by a spring of force constant k and equilibrium length L. Find the maximum and minimum separation between the two blocks... more
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03/26/13

Physcis question
Catching a wave, 77-kg surfer starts with a speed of 1.3 m/s, drops a height of 1.65m, and ends with a speed of 8.2 m/s.  How much non conservative work was done on the suffer?
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03/25/13

Factoring trinominals
a factor of 24 that give you a sum of negative four  
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