Answer:

An = A1r^n - 1

A10 = 7310 - 1

A10 = 7*3^9

A10 = 7*19683

A10 = 137,781

Step-by-step explanation:

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Answer:

8,4,2,1,1/2

Step-by-step explanation:

number of terms_,_,_,_,_

Givens:

r=1/2

a10=1/64

10-1

1/64=(a1)(1/2)

1/64=(a1)(1/2)⁹

a1=8

n-1

an=(a1)(r)

2-1

a2=(8)(1/2)

a2=(8)(1/2)

a2=4

number of terms:8,4,_,_,_,

n-1

an=(a1)(r)

3-1

a3=(8)(1/2)

2

a3=(8)(1/2)

a3=(8)(1/4)

a3=2

number of terms:8,4,2_,_

n-1

an=(a1)(r)

4-1

a4=(8)(1/2)

3

a4=(8)(1/2)

a4=(8)(1/8)

a4=1

number of terms:8,4,2,1_

n-1

an=(a1)(r)

5-1

a5=(8)(1/2)

4

a5=(8)(1/2)

a5=(8)(1/16)

a5=1/2

number of terms:8,4,2,1,1/2