Question

What is the 7th term of the geometric sequence where a1 = -625 and a2 = 125?
Select one:
A. -0.2
B. 0.04
C. -0.04
D. 0.2

Answer 1

@mechanicalanimal_

Answer 2

@iambatman

Answer 3

first find the common ratio
which is 125 / -625

Answer 4

got that?

Answer 5

Yea i think so

Answer 6

what do you get?

Answer 7

That the common help you determine how many are between each number

Answer 8

they want the seventh term

Answer 9

the coomon ratio = -0.2
7th term = a1*r^6 = -625 * (-0.2)^6

Answer 10

sorry i was wrong - can you work out -625*(-0.2)^6 on ur calculator

Answer 11

i dont have a calculator

Answer 12

there should be one on your computer

Answer 13

it doesnt let me do ^6

Answer 14

Is it C?

Answer 15

you are probably in the standard mode
go into view and press scientific mode

Answer 16

yes

Answer 17

Thanks!