# Unit 2 Review Question Preview (ID: 7132)

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Review.[print questions]

**What is 4 ^3 ? (four to the 3rd power)**

a) 64

b) 27

c) 16

d) 12

**What is 10 ^-4 in scientific notation?**

a) In scientific notation 1,000

b) In scientific notation 100

c) In scientific notation 10

d) In scientific notation .0001

**Write number in scientific notation 0.000000204**

a) 20.4 x 10 ^9

b) 204

c) 2.04 x 10 ^-7

d) .204 x 10 ^8

**Write 4.6 x 10^8 in scientific notation.**

a) 460,000,000

b) 46,000

c) .000000046

d) 4,600,000

**Find the two square roots of 625**

a) +/- 15

b) +/- 25

c) +/-312.5

d) +/- 5

**Evaluate the expression: The square root of 36 times the square root of 4.**

a) 144

b) 24

c) 8

d) 12

**The square root of 36 is 6. What type of number is 6? rational, irrational, or not a real #**

a) all 3

b) rational

c) irrational

d) not a real #

**What is the square root of 63? round to nearest tenth**

a) 7.9

b) 9.0

c) 6.3

d) 3.6

**Estimating the square root: The square root of 5 is between two integers. Name the integers.**

a) 5 and 6

b) 4 and 5

c) 2 and 3

d) 8 and 9

**My 3 math teachers are...**

a) Mrs. Johnson, Mrs. Obama, and Mrs. Bilen

b) Mr. Snarr, Mr. Patterson, and Mrs. Johnson

c) Mrs. Johnson, Mrs. Shirey, and Mrs. Bilen

d) Mr. Johnson, Mr.Shirey, and Mr. Bilen

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