Review 12/19/18

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

• r = 2

• r = 8

• r = 1/4

• r = 1/2

What is the sum of the first 10 terms for the following geometric series?

2 + (-6) + 18 + (-54) +...

• -39366

• -29524

• 524288

• 39366

Which of the following represents the sum of a geometric series with 8 terms and whose first term is 3 and whose common ratio is 4?

• 32,756

• 49,152

• 28,765

• 65,535

John has purchased 20 books. The 1st book cost $1, the 2nd cost $2, the 3rd cost $4, and the 4th cost $8, and so on. How much did John pay for the 20 books?

• $1, 048, 575

• $ 524, 288

• $1, 555, 119

• John can't read

What is the 14th term of the geometric sequence?

3, 9, 27, 81, ...

• 14,348,907

• 4,782,969

• 1,594,323

• 7,174,452

Find the next two terms of the sequence:

8, 4, 2, 1, 1/2, ...

• 1/3 and 1/4

• 1/4 and 1/8

• 1/4 and 1/6

• 1/8 and 1/16

f(x) = 3x + 10

g(x) = x - 2

Find f(g(5))

• 19

• 23

• -10

• None of these.

f(x) = 3x + 10
g(x) = x - 2
Find g(f(-10))

• -42
• -26
• -18
• None of these.

Tags

CCSS.HSF-BF.A.1C

f(x) = 3x + 10
g(x) = x - 2
Find g(f(x))

• 3x + 8
• 3x - 2
• 3x + 4
• None of these.

Tags

CCSS.HSF-BF.A.1C

g(x) = 3x + 4

h(x) = 3x - 1

Find g(h(x))

• -9x + 11

• 9x - 3

• 9x + 1

• 9x + 11