Larsen

Mathematics

29 February, 09:21

1. What is the explicit rule for this geometric sequence?

2, 6, 18, 54, ...

A. an=3⋅2n-1

B. an=2⋅3n-1

C. an=2⋅3n

D. an=3⋅2n

2. What is the recursive rule for this geometric sequence?

7, 21, 63, 189, ...

A. a1=3; an=7⋅an-1

D. a1=21; an=7⋅an-1

C. a1=7; an=3⋅an-1

D. a1=7; an=13⋅an-1

3. What is the explicit rule for this geometric sequence?

a1=-15; an=15⋅an-1

A. an=-15 (15) n-1

B. an=15 (-15) n-1

C. an=15⋅ (-15) n-1

D. an=-15⋅15n-1

4. A business owes $8000 on a loan. Every month, the business pays 1212 of the amount remaining on the loan.

How much will the business pay in the sixth month?

Enter your answer in the box.

5. What is the common ratio for the geometric sequence?

24,-6,32,-38, ...

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