# Unit 2 Review: Question Preview (ID: 7132)

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What is 4 ^3 ? (four to the 3rd power) |
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a) 64 | b) 27 | c) 16 | d) 12 | |

What is 10 ^-4 in scientific notation? |
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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 |
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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. |
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a) 460,000,000 | b) 46,000 | c) .000000046 | d) 4,600,000 | |

Find the two square roots of 625 |
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a) +/- 15 | b) +/- 25 | c) +/-312.5 | d) +/- 5 | |

Evaluate the expression: The square root of 36 times the square root of 4. |
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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 # |
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a) all 3 | b) rational | c) irrational | d) not a real # | |

What is the square root of 63? round to nearest tenth |
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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. |
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a) 5 and 6 | b) 4 and 5 | c) 2 and 3 | d) 8 and 9 | |

My 3 math teachers are... |
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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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