mac1147_unit1_review_1_c

mac1147_unit1_review_1_c - Review Unit I Rewrite without...

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I Review – Unit I Rewrite without absolute value symbol: 24 π −− − Use absolute value notation to describe: y is at most 2 units from a Simplify: 1 1 33 cc ⎛⎞ ⎜⎟ ⎝⎠

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II Simplify: 34 3 75 3 625 5 x y x y Multiply: 33 (2 ) (2 ) x yx y −+
III Simplify: 22 1 1 33 3 3 12 (1 ) ) xx x x −− ++ + 3 2 2 31 1 1 x x x x +− + +

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IV Verify that ( 2) x is a factor of 5 32 x . Solve: 2 12 0 31 9 1 x x += +−
V How much pure acid should be added to 5 gal. of a 40% acid solution to obtain a 50% acid solution? Mixture : Total % acid Total acid Original Added New Solve: 3 ( 2) 2 x x −=

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VI Perform the indicated operations:

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mac1147_unit1_review_1_c - Review Unit I Rewrite without...

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