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
Answer:
1 3/4
Step-by-step explanation:
5 1/4 / 3 is equal to 1 and 3/4
If you are solving for x than the answer would be x=4.
Sorry I’m not sure but maybe you could look it up???