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[answered] Math 012 Quiz 4 Name________________________________ At the

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Math 012 Quiz 4

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1) Find the excluded values for the algebraic fraction: 3x 7

5x 3 2) Find the excluded values for the algebraic fraction: x6 x2 3x 18 Math 012

Quiz 4 3) Perform the indicated operation and simplify your answer: 10n2 6n 60 3

8n2 Page 2 Math 012

Quiz 4

4) Perform the indicated operation and simplify your answer: x2 12 x 27 5x2 45x

x7

x 3 5) Perform the indicated operation and simplify your answer: 3

6 2 x 1 x 6 6) Perform the indicated operation and simplify your answer: 5 2

n 3 n 2 Page 3 Math 012

Quiz 4 Page 4 7) Solve the equation and show the check of your solution(s). If an answer is an excluded value,

please state than on your paper. Use the method discussed in Section 7.7 of our text, clearing

fractions from the equation first. m 4 m2 10m 24 2 2

m2

4m2

m 8) Solve the equation and show the check of your solution(s). If an answer is an excluded value,

please state that on on your paper. Use the method discussed in Section 7.7 of our text, clearing

fractions from the equation first. 3x 6

2x x 4 x2 7 x 12 x 3 Math 012

Quiz 4 Page 5 9) If a 9-foot tall adult elephant casts an 18-foot shadow, how long is the shadow of the 6-foot

zookeeper? Use a proportion to set up and solve an equation. Round your answer to the nearest

tenth of a foot if necessary. 10) Ellen worked 12 more overtime hours than Andrew one week. If Ellen worked 8 overtime

hours for every 5 overtime hours that Andrew worked, for how many hours of overtime did each

person work? Round your answer to the nearest tenth of an hour if necessary.

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