The answer is 3.141529
<span>I'm right.</span>
Answer:
2,122.64 square units or 
units squared
Step-by-step explanation:
The surface area of a sphere can be found using the formula 
. Since the radius is 13 units, substitute r=13.
Without multiplying 3.14 for 
, the answer is
3x+2≤5(x-4)
distribute 5
3x+2≤5x-20
minus 3x both sides
2≤2x-20
add 20 both sides
22≤2x
divide by 2
11≤x
x≥11
Answer: i think its D and E
Step-by-step explanation:
Answer:
Your answer is correct. The series is a geometric series with common ratio -1/4 and first term 40. So each term is:
an = 40 (-1/4)^(n−1)
So the sum of the first 10 terms is:
∑(n=1 to 10) [ 40 (-1/4)^(n−1) ]
