Answer:
21
Step-by-step explanation:
Plug in 3 for m in the equation:
n=10x3-9
n=30-9
n=21
Answer:
Area for rectangle = B*H
Area for triangle = B*H/2
total area = area of triangle + area of rectangle
A of rectangle = 17 * 22 = 374 cm²
Triangle height is not giving so we take 22-10 = 12 cm for the height so
A of triangle = 12*19/2 = 114 cm²
total A = 114 + 374 = 488 cm²
Step-by-step explanation:
The formula for the volume of a cylinder is pi * r^2 * h and it is equal to 108pi. This makes r^2 = 9 which means r=3
