This is a geometric sequence, so use the formula for the sum of a geometric sequence:
Sum = (a(r^n - 1))/(r - 1)
where a is the first term, -5
r is the common ratio, 5
and n is the number of terms
Thus,
Sum = ((-5)(5^6 - 1))/(5-1) = -19530
Answer:
A. 7pi>21
Step-by-step explanation:
7*pi=21.99
21.99>21
Bagels = 4d - 3
Four times means 4d and you subtract 3 because Geoff has three less than 4 times.
Answer: 5x^2 - 3y^2 - 2xy +4
Step-by-step explanation:
(see attachment)