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Square Root Chapter 9

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**Warm-up Solve the equations below : (4) 8r – 7 = 3r + 23**

(1) 4 m – 3 = m + 15 r = 6 m = 6 (2) 6y – 2 = 2y + 18 (5) 10 w – 9 = 3w + 33 y = 5 w = 6 (3) 6t + 3 = 3t + 15 (6) 9f + 14 = 3f + 56 f = 7 t = 4

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Perfect Squares 64 81 100 121 144 169 196 225 256 324 400 625 289 1 4 9 16 25 36 49

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Simplify = 2 = 4 = 5 = 10 = 12

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Examples

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Squares table

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Practice 13 20 ⅓ 30 0.5 6/7 -1.1 1.4 0.6 -12 5/4 ±.1

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Solving square roots

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Practice t = ± 5 n = 0 g = undefined x =0 t = ± 3

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Classwork

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Warm Up Estimate the value of each to the nearest tenth. 1. √30 2. √14

Warm Up Estimate the value of each to the nearest tenth. 1. √30 2. √14

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