Sums of Finite Geometric Sequences

Is the sequence geometric? {4, 16, 36, 64, ...}

• Yes

• No

Which of the following represents the SUM of a geometric series with 8 TOTAL terms and whose FIRST TERM is 3 and whose COMMON RATIO is 4?

• 32,756

• 42,560

• 28,765

• 65,535

How many miles is it around I-285?

• 64 miles

• 82 miles

• 19 miles

• 91 miles

Does this graph show an arithmetic or a geometric sequence?

• Arithmetic

• Geometric

Find the common ratio for the geometric sequence.

• -4
• 4
• 1/4
• -1/4

Which is closest to the sum of the first 11 terms of a sequence that begins with 1/2 that has a common ratio of 2.5?

• 15000

• 8000

• 5000

• 300

Find the common ratio: 16, 8, 4, 2, ...

• r = 2
• r = 8
• r = 1/4
• r = 1/2

Find the common ratio: -3, -9, -27, -81, ...

• r = 6
• r = -6
• r = 3
• r = -3

What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?

• 59,050
• -59,048
• -78,732
• 118,096

Tags

CCSS.HSA.SSE.B.4

Find the next three terms of the geometric sequence: -4, -12, -36, -108, ...

• 36, -108, 324
• -324, -972, -2916
• 324, -972, 2916
• -108, 324, -972

Tags

CCSS.HSF.BF.A.2