Answer:
7 seconds
Step-by-step explanation:
SA = 4πr²
784π = 4πr²
196 = r²
r = 14
At 2 cm/s, it takes 7 seconds to reach a radius of 14 cm.
Answer:
Step-by-step explanation:
1.25p=6600
p=6600/1.25
p=5280
5.7 + 6.2 = 11.9 You can round it, but you don't need to. Really. Round it becomes 12. Then its more clear. But if you don't round, it is more exact.
A linear equation cannot be used.
because 60/1 isn't equal to 70/5 and isn't equal to 80/20 and so on.