The radius r of a circle is increasing at a rate of 8 centimeters per minute. find the rate of change of the area when r = 39 ce
ntimeters
1 answer:
Dr/dt= 8cmM-¹
dA/dt = ?
but A= πr²
so dA/dr =2πr
but recall
dA/dt = dA/dr • dr/dt
dA/dt = 2πr • 8cmM-¹
dA/dt = 2×π×39 ×8 = 624cm²M-1
You might be interested in
Answer:
.05 im sure of it hope it helps.
Step-by-step explanation:
Answer:
28 - 15 + 5 = 18. Add and subtract will get you ,your answer. Bryce has $18
Step-by-step explanation:
Simple math hope this helped
Step-by-step explanation:
DA=13.................
D
The answer is D 33 because it starts by adding 1 and then doubles the amount added every time<span />
