10/18/14

Why is the sky blue
I know that we have Oxygen, Carbon dioxide and Nitrogen in the air with Sunlight, but what is the reactions that take place to get Blue Skies?
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10/17/14

Long division of a polynomial
I am having a very hard time dividing this polynomial, can someone help? I think it is because the dividend is squared;   3x^4 + x^3 - 2x^2 + 3x - 4 divided by x^2 - 1     I choke on the x^3... more
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10/14/14

how to solve integral of 3x-3/(3x^2-6x+1)?
i have a problem solving this. Help?
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10/11/14

50 of a new model of DVD player per month at a price of $140 each. For each $10 decrease in price, about 5 more What is the maximum monthly revenue?
A store sells about 50 of a new model of DVD player per month at a price of $140 each. For each $10 decrease in price, about 5 more DVD players per month are sold. What is the maximum monthly revenue? more
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09/26/14

Gradient and directional derivative
A hill can be modeled with the equation H=100−x^4−3y^2 , where H denotes the elevation. A ball is placed on a hill at x0, y0. Find the initial direction in which the ball would roll if it would be... more
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09/23/14

What are all the common multiples of 16
Hi I'm wondering what all the common multiples of 16 because I am not good at math and need a little help I go all the common multiples of the numbers I need i  just can't figure out the ones of 16... more
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09/23/14

Magnitude of frictional force
A 50kg wooden crate rests on a horizontal concrete floor.  the coefficient of friction is μ=0.7    What is the magnitude of the frictional force?          
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09/18/14

why is 7 the largest integer smaller than the square root of 50
I seriously need this answer
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09/14/14

The product of two numbers is 1. Decide the second factor if the first one is 3/5
There are a total of 4 questions. A) the first factor is 1/4 B)the first factor is 2 C)the first factor is 3/5 D)the first factor is 6   A) 1/4 = 0,25 0,25*4=1   B)... more
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09/12/14

The sum of three consecutive odd integers is 89 more than twice the largest integer. Find the Integers.
I do not know how to set up this word problem. 
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08/28/14

How many ways can you make change for a dollar using nickels, dimes, and/or quarters?
Need help with word problem.  How many ways can you make change for a dollar using nickels, dimes, and/or quarters?
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08/14/14

How do I get to the answer (z-2) from ((z^3)-8)/((z^2)+(2*z)+4)?
I'm stuck at factoring out cubed z. So far, I've factored the expression ((z^3)-8)/((z^2)+(2*z)+4) into ((z-2)^3)/z(z+2)+4. I'm not sure I've done this correctly in the first place, mostly because... more
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08/12/14

g^x+2=(1/27)^1-x
Solve for x in this problem
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07/28/14

A right triangle has an area of 8 cm2. Its height is 1 cm more than twice its base. To the nearest tenth of a cm, what is its height?
8= (.5) (b) (2b+1)
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07/23/14

Population growth rate
From 2010 to 2013, big ol Texas had a population growth rate of 5.18%, starting with a massive 25,145,561 earthlings! On the other hand, California had a population of 37,253,956 in 2010 and grew... more
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07/22/14

What are the real world application of limits (calculus limits) for Industrial Engineering? discuss and Give a concrete examples.
Hi, buddies. Please me in my task to answer this questions. As far as my questions, I'm just looking for "What are the real world application of limits (calculus limits) for Industrial Engineering?... more
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07/19/14

I cot the answer but i am not able to show my child how I got the answer
Mrs. Carlyle bought a bag of peanuts for her children. child 1 took 1/3 of the bag. Child 2 took 1/4 of remaining peanuts. Child 3 took 1/2 of the remaining peanuts. Child 4 took 10 peanuts. there... more
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07/18/14

What are the roots of y^3 + y^2 - 16 = 0
The rational roots test doesn't give any roots.   I'm stuck.
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07/14/14

Is this course taken after Differential Equations?
Is the course "Complex Variables with Applications" the course taken after Differential Equations? What does this course cover? Is this course applied or pure math? Can someone recommend me a good... more
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07/10/14

f(x)=-6x-1 and g(x)=4x^2 select the solution for (fg)(x)
i don't understand on how to do this..........................................
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07/08/14

help with sound waves and light waves
I am confused with a few questions?   1.  can sound waves be polarized? 2.  can light waves be polarized?   3.  can light waves produce resonance? 4.  can sound waves produce... more
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07/06/14

Differential Equations circuit homework problem
Attached is the problem from my text book. I'm confused about what I'm actually solving and how to use what I know. I know that Current for the inductor is given by the equation di/dt = v/L and the... more
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06/29/14

Using Data Given Below Use this function to Predict the Number of Hurricanes.
Using Function Given Below Use this function and data to Predict the Number of Hurricanes between 1961 and 1970.   Decade, x            Major Huricanes Striking,H 1921-1930, 1      ... more
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06/29/14

help with inertia
  1.  a ball remains at rest on the ground.  the fact that it does not move   a.  illustrates the law of inertia b.  indicates that the net force acting on the ball is 0 c.  both a and b d. ... more
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06/29/14

help with kilometers
1.  a car starts a journey of 100 kilometers with a beginning speed of 25 kilometers per hour.  It completes the journey in 2 hours.  what was the "average" speed of the car.   a. 25 km/h      ... more
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