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Solve the problem. Round your answer, if appropriate.The radius of a right circular cylinder is increasing at the rate of , while the height is decreasing at the rate of . At what rate is the volume of the cylinder changing when the radius is 18 in. and the height is 9 in.?

Use implicit differentiation to find dy/dx and d2y/dx2.2y – x + xy = 2

Find the derivative.r = 10 – θ5 cos θ

Intussusception occurs when the bowel prolapses into  bowel, and is propelled ____________.    

Find y”.y = 6 sin(2x + 8)

Calculate the derivative of the function. Then find the value of the derivative as specified.θ =1 if r =

Use implicit differentiation to find dy/dx and d2y/dx2.2y – x + xy = 5

Find y”.y = 6 sin(2x + 9)

Solve the problem.Find the points where the graph of the function have horizontal tangents.f(x) = x3 – 15x

Chronic adrenal insufficiency is a rare condition. Symptoms include weakness, weight loss, and hypotension. This disease is called: