Find a8 when a1 = 40,000, r = 0.1

Question

Mathematics

Marlene Coffey

2 January, 19:55

Find a8 when a1 = 40,000, r = 0.1

+1

Answers (2)

Know the Answer?

Naomi Lane · Answer 1

0.004

Step-by-step explanation:

The first term for this geometric series, a1, is 40,000

The common ratio for this geometric series, r, is 0.1

The eight term for this geometric series, a8, is given by the equation a1*r^7

a8=40000*0.1^7

=0.004

Clements · Answer 2

a8 = 0.004

Step-by-step explanation:

Q is abt a geometric series given by the eqn: an = a1*r^ (n-1)

given a1 = 40000, r = 0.1

an = 40000 * (0.1) ^ (n-1)

a8 = 40000 * (0.1) ^ (8-1)

= 40000 * (0.1) ^7

= 0.004