Cyl. vol.: V = pi*r^2*h
Here,
V = 864 in^3 = pi*(12 in)^2*h
864 in^3
so that h = --------------------- = 1.91 inches, or approx. 2 inches.
3.14*144 in^2
Answer:
32
Step-by-step explanation:
Answer:
B. 7.3 %
Step-by-step explanation:
Given:
Initial average grade = 82
Final average grade = 88
Duration for the increase = 3 weeks
Therefore, increase in average grade = Final - Initial = 88 - 82 = 6
Now, percent increase in average grade is given as:

Therefore, the percent increase in her average grade over the 3-week period is 7.3 %.