Answer: anwser is D if thats incorrect then its A
Step-by-step explanation:
Answer:
the great
Step-by-step explanation:
usa united states
He needs to buy 4.5 packages of footballs because 4 is equal to 16 and half of four is 2 add them together you get 18
Area = π x radius²
dA/dr = 2πr
Average rate of change = (rate of change at one instant + rate of change at other instant)/2
= (2πr₁ + 2πr₂)/2
= (r₁ + r₂)π
Ai) 9π
Aii) 8.5π
Aiii) 8.1π
B) Instantaneous change:
(dA/dr) at (r = 4) = 2π(4)
= 8π
