Sunday

November 23, 2014

November 23, 2014

Posted by **Mulan** on Tuesday, November 3, 2009 at 9:43pm.

x = 4 and y = 5 .

[dy/dt] =______

2)Let A be the area of a circle with radius r. If [ dr / dt ] = 2, find [ dA / dt ] when r = 3

- Calculus -
**bobpursley**, Tuesday, November 3, 2009 at 9:46pmI will do one, and be happy to check your thinking.

q=x^3 y^2

dq/dt= 2x^2 y dy/dt+ 3y^2x^2 dx/dt

put in dq/dt, dx/dt, and find dy/dt ..

- Calculus -
**Mulan**, Tuesday, November 3, 2009 at 9:52pmi dont get it..

dq/dt isnt it 3x^2y

and i don't get the part where you put 3y^2x^2 how many exponents are there

**Answer this Question**

**Related Questions**

calculus - Find an equation for the surface consisting of all points P(x, y, z) ...

Calculus Please Help - A) If x^2+y^3−xy^2=5, find dy/dx in terms of x and...

Calculus - Let f(x)=21−x^2 The slope of the tangent line to the graph of f...

Grade 12 Calculus - Evaluate each of the following. Show all your calculations...

calculus (gr 12) - Evaluate each of the following. Show all your calculations. a...

calculus (gr 12) - Evaluate each of the following. Show all your calculations. a...

Calculus Please Help - Let f(x)=4−x^2. Find each of the following: (f(2+h...

Calculus - Consider the function f(x)=(4^x−1)/x. (a) Fill in the ...

Calculus - Consider the function f(x)=(4^x−1)/x. (a) Fill in the ...

biology - Given the part of the molecule shown below, can the underlined atom ...