Answer:
R = 4cm
Step-by-step explanation:
V = π(R)²h = 480π
Divide by π
(R)²h = 480
Substitute h with 30
30*(R)² = 480
Divide by 30
(R)² = 16
Square root
R = 4cm
We do not accept R= -4 because it's a length, so it must be positive.
Answer:
20%
Step-by-step explanation:
becuz 2×.2 = .4
subtract .4 from 2 and it's 1.6 and change the .2 to percentage
