Answer:
B
sqrt of 1000= 31.6m
A=pi r2
1000pi= pi r2 (pi cancels)
1000=r2 (take square root of both sides)
r= 31.6m
Step-by-step explanation:
Answer:
Harriet is 16 years of age
Step-by-step explanation:
(x-5)+x=37
2x=42
x=21
21-5=Harriet's Age
Answer:
a(7) = 21
Step-by-step explanation:
Using the recursive formula and a(1) = 0, a(2) = 1 , then
a(3) = a(2) + 2a(1) = 1 + 2(0) = 1 + 0 = 1
a(4) = a(3) + 2a(2) = 1 + 2(1) = 1 + 2 = 3
a(5) = a(4) + 2a(3) = 3 + 2(1) = 3 + 2 = 5
a(6) = a(5) + 2a(4) = 5 + 2(3) = 5 + 6 = 11
a(7) = a(6) + 2a(5) = 11 + 2(5) = 11 + 10 = 21
Answer:
True
Step-by-step explanation:
140 * 10 = 1400
True
