Answer:
$400
Step-by-step explanation:
Answer:
3.14 units²
Step-by-step explanation:
Area=πr²
Where π=3.14, r=1 unit
=(3.14)(1)²
=(3.14)(1)
=3.14 units²
Answer:
(3, 7)
Step-by-step explanation:
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.
