Answer:
29
Step-by-step explanation:
To find the mean, add all the numbers together and get 290. Then divide by 10 because there are 10 microphones.
Given:
Cylindrical tank volume : 14,130 in³
smaller cylinder : 25 pcs
radius of small cylinders: 3 inches.
Volume of a cylinder = π r² h
14,130 in³ ÷ 25 pcs = 565.20 in³ volume per small cylinder.
565.20 in³ = 3.14 * (3in)² * h
565.20 in³ = 3.14 * 9in² * h
565.20 in³ = 28.26 in² * h
565.20 in³ ÷ 28.26 in² = h
20 in = h
The height of the small cylinder is 20 inches.
Total percentages of student who scored As
= 25+35= 60%
Probability of a girl who got A = 35/60
If you simplify the ans will be 7/12