Question

HELP! PLEASE! MEDAL WILL BE REWARDED!!!
Assume that x and y are both differentiable
functions of and find the required values of dy/dt and dx/dt.
x^2+y^2=25
Find:
dy/dt when x=3, y=4 Given dx/dt=8

dy/dt when x=4, y=3 Given dy/dt=-2

Answer 1

For this question we will need to use imaginary numbers, we will need to take the first number and multiply it by eleventeen, then divide the second number by seventytwelve. Then we cross multiply the entire thing and then add fortyfifteen. This will bring you to your answer.

Answer 2

When I differentiate with respect to t, I get...\[2x \frac{dx}{dt}+2y \frac{dy}{dt}=0\]then substitute your numbers in and solve for dy/dt.