1 Solve using the square root method. 9x 2 - 25 = 0 A. {-5/3, 5/3} B. {-3/5, 3/5

Question

1

Solve using the square root method. 9x2 - 25 = 0 A. {-5/3, 5/3} B. {-3/5, 3/5} C. {-3,5} D. {-5, 3}

2

Solve using the square root method. Round thesolution to the nearest tenth. x2 - 20 = 0 A. {-10.0,10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5}
1

Solve using the square root method. 9x2 - 25 = 0 Solve using the square root method. Round thesolution to the nearest tenth. x2 - 20 = 0 A. {-10.0,10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5} Solve using the square root method. Round thesolution to the nearest tenth. x2 - 20 = 0 A. {-10.0,10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5} Solve using the square root method. Round thesolution to the nearest tenth. x2 - 20 = 0 A. {-10.0,10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5} A. {-5/3, 5/3} B. {-3/5, 3/5} C. {-3,5} D. {-5, 3}

2

Solve using the square root method. Round thesolution to the nearest tenth. x2 - 20 = 0 A. {-10.0,10.0} B. {-5.5, 5.5} C. {-3.5, 3.5} D. {-4.5, 4.5}

Explanation / Answer

(1) 9x2 - 25 = 0 --> 9x2 =25 --> x2 =25/9 --> x=(25/9) = ± 5/3 Answer: {-5/3, 5/3} (2)x2 - 20 = 0 --> x2 = 20 --> x=±20 = ± 4.5 Answer:D. {-4.5, 4.5}

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