In parts (a)(d), let A be the area of a circle of radius r,and assume that r increases

Chapter 3, Problem 6

(choose chapter or problem)

In parts \((a)–(d)\), let \(A\) be the area of a circle of radius \(r\), and assume that \(r\) increases with the time \(t\).

(a) Draw a picture of the circle with the labels \(A\) and \(r\) placed appropriately.

(b) Write an equation that relates \(A\) and \(r\).

(c) Use the equation in part (b) to find an equation that relates dA/dt and dr/dt.

(d) At a certain instant the radius is 5 cm and increasing at the rate of 2 cm/s. How fast is the area increasing at that instant?

Equation Transcription:

(a)-(d)

A

r

t

Text Transcription:

(a)-(d)

A

r

t

Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.

Becoming a subscriber
Or look for another answer

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back