03/18/19

How do you prove that the derivative of inverse tangent is 1x2+1?
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Expert Answers •5

03/14/19

Aunt and Uncle's fuel oil tank dip stick problem?
This problem first came to me in high school, and a couple times since, and I even assigned it for extra credit in one of my calculus classes after I became a teacher. So I know the solution. What... more
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03/13/19

When can you use a triangle to represent trig substitution?
I apologize if this seems like a newbie question but it's been really messing with my head. I'm reading about using trig substitution in integration and everyone seems to simply construct a right... more
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11/03/16

sarah has $3000 to invest in a cd if she gets 4% interest what will the cd be cd be worth after 4 years
I NEED HELP WITH THIS MATH MY TEACHER DID NOT TEACH  THIS CLEARLY. COULD U PLZ HELP WITH MY MATH    
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10/06/15

whats the standard form for 2 to the negative first power??
 idkidkidkidkidkdidkdidkdidkdidkdidkdidkdidkdidk
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10/06/15

Your checking account is overdrawn by $50. You write a check for $20. What is the balance in your account?
Solve the problem 
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10/05/15

Find the derivative
Suppose F(x)=f(x)g(2x).If f(1)=3, f′(1)=3, g(2)=2, and g′(2)=5, find F′(1).   Derivative of g(2x) at x=1 is?
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10/05/15

Find the derivative
Suppose h(x)=sqrt(f(x)) and the equation of the tangent line to f(x) at x=1 isy=4+5(x−1).Find h′(1).
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10/05/15

What is the maximum effectiveness of a pop up ad with the equation E=-2(n-11)(n+2) ?
I'm not very good at word problems and this one of for quadratics and I'm really struggling. please help!
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10/05/15

Help for the physics questions?
A baseball player throws a baseball with a horizontal velocity of 100m/s west. The ball hits the ground 0.5 seconds later.   A) With what vertical velocity does the ball land?   B) How tall is... more
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11/18/13

Anybody know physics well?
Was wondering if physics a little hand in physics
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