mac1147_unit1_review_2_c

mac1147_unit1_review_2_c - Review – Unit I Rewrite...

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Unformatted text preview: Review – Unit I Rewrite without absolute value symbol: Simplify: 3 625 x −3 y 4 3 5 x −7 y 5 −2 − π − 4 Use absolute value notation to describe: y is at most 2 units from a Multiply: (2 x − y )3 (2 x + y )3 Simplify: −1 3c −1 ⎛ 3c ⎞ ⎜⎟ 2 ⎝4⎠ I II Simplify: 2 2 1 1 − 1 −3 2 x ( x + 1) 3 + x 3 ( x + 1) 3 3 3 Verify that ( x − 2) is a factor of x5 − 32 . Solve: 1 2 +2 =0 3x + 1 9 x − 1 3x 2 x 2 + 1 − x3 x x2 + 1 x2 + 1 III IV How much pure acid should be added to 5 gal. of a 40% acid solution to obtain a 50% acid solution? Perform the indicated operations: 2 Mixture: Original Added New Total % acid Total acid ⎛3 3⎞ −i ⎟ = ⎜ 2⎠ ⎝2 4 − 5i 1 − 3i Solve: 3 x( x − 2) = −2 i 249 V VI During the boat race the contestants travel 24 miles upstream and 24 miles downstream. The winning boat can travel 10 mi/hr in still water and takes one hour longer to make the upstream trip than downstream trip. What is the speed of the current? 2 Solve: ( x − 3) 3 = 25 2 1 Solve: 4 x 3 − 3x 3 = 1 VII VIII Solve: Solve: 2 − 3 x ≥ 4 x + 6 − x +1 = 1 Solve: IX 1 > 25 x−3 X ...
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mac1147_unit1_review_2_c - Review – Unit I Rewrite...

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