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:
180
Step-by-step explanation:
It is always 180 for a angle like this.
Answer: B,C,D,E,G
Step-by-step explanation:
Answer:
1018.
Step-by-step explanation:
The multiplying factor here is 1 +0.09 = 1.09. Every year the current population figure is multiplied by 1.09. We have 10 years of growth so:
P(2010) = 430(1.09)^10
= 1018.
