Question

for the geometric sequence to a1=4 and r=5 find a5

Answer 1

does anyone know how to do this please help

Answer 2

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Answer 3

The formula for a geometric sequence is \(\dfrac{a_1(1-r^n)}{1-r}\)

Answer 4

whats the answer

Answer 5

You will not just get the answer. You will have to participate if you want the answer.

Answer 6

\(a_1=4 ~{\bf and} ~r=5\)

Answer 7

What does n equal?

Answer 8

i dont know

Answer 9

What number term are we trying to find?