The area of a circular sunspot is growing at a rate of 800 km^2/sec

How fast is the radius growing at the

Question

The area of a circular sunspot is growing at a rate of 800 km^2/sec. How fast is the radius growing at the

instant when it equals 9,000 km? (Round answer to 3 decimal places)

Question: The area of a circular sunspot is growing at a rate of 800 km^2/sec. How fast is the radius
growing at the instant when it equals 9,000 km? (Round answer to 3 decimal places)
Solution:…
Math