You sure that’s the radius and not diameter? But if it is, the volume would be 70,276.2 cm
X² - 4x - 77 = 0
( x + 7) ( x - 11)
x + 7 = 0
x - 11 = 0
x = -7
x = 11
Answer:
240 m³
Step-by-step explanation:
volume = length × width × depth
240 m³ = 20 m × 1 m × 12 m
First one is c and the second im not sure on