Math 3 Unit 2 Review

Solve the equation for x.

log₂ 128 = x

• 7

• 8

• 9

• 10

Tags

CCSS.HSF.BF.B.5

Solve for x. Round to 2 decimal places if necessary.

(1/4)^(x-2) = 16

• 0.5

• 0

• 1

• 2

Tags

CCSS.7.EE.B.4A

Solve for x. Round to 2 decimal places if necessary.

10^(x-2) = 100^(x-2)

• 1.5

• 2.0

• 0.5

• 1.0

Solve for x. Round to 2 decimal places if necessary.

4^(x-2) = 16

• 4.5

• 3.5

• 5.0

• 4.0

Tags

CCSS.7.EE.B.4A

Solve for x. Round to 2 decimal places if necessary.

5+4e^(3x)=10

• 0.1

• 0.05

• 0.07

• 1.5

Solve for x. Round to 2 decimal places if necessary.

ln(x + 2) = 8

• 5.26

• 5.29

• 5.36

• 5.39

Tags

CCSS.HSF.BF.B.5

An experiment begins with approximately 900 bacteria that grows at a rate that their population doubles every hour. Write an equation to model the number of bacteria after t hours.

• y = 900(1.5)^t

• y = 900(1.02)^t

• y = 2(900)^t

• y = 900(2)^t

Tags

CCSS.HSF.LE.A.2

The price of a new car is $50,000. The value of the car

depreciates 2% each year. How much will the

home be worth in 10 years?

• $40,853.64

• $40,583.65

• $40,358.64

• $40,853.66

Tags

CCSS.HSF.BF.A.2

Write as a single logarithm: log₉ 25 - log₉ 5

• log₉ 20

• log₉ 125

• log₉ 5

• none of these

Expand: log₄ 12m²

• log₄ 12 - 2log₄ m

• log₄ 12 + log₄ m²

• log₄ 12 + 2 log₄ m

• 2log₄ 1 + 2log₄ m