Answer:



Step-by-step explanation:

3.14x12.2^2x6.1=2850.9in^3
The Answer is C.) 2850.9in^3
The answer is 254.47 ft
Step-by-step explanation:
V=pi×r^2×h
pi=3.14
r=d/2
r=6/2=3
v=(3.14)×3^2×9
=254.47 ft
Answer:
the answer is 31.9 years
Step-by-step explanation:
initial mass,
= 150 gram
half life,
= 32 years
new mass = half of initial mass = M = 0.5
formula , M =
where x is the number of years required.
therefore 0.5
=

therefore -0.0217 x =
therefore x =
= 31.942