Math Algebra

Math 012

Quiz 4 Page 3

Please remember to show ALL of your work on every problem. If there is no work to show, then include a sentence or two explaining your answer.

Here are the basic rules of showing work:

a) Each step should show the complete expression or equation rather than a piece of it.

b) Each new step should follow logically from the previous step, following rules of algebra.

c) Each new step should be beneath the previous step.

d) The equal sign, =, should only connect equal numbers or expressions.

1) Simplify the following: Show / explain your work

2) Simplify the following: Show / explain your work

3) Multiply and Simplify the following: Show / explain your work

4) Divide and Simplify the following: Show / explain your work

5) Subtract the following rational expression. Simplify your answer: Show or explain your work

6) Subtract the following rational expression. Simplify your answer: Show or explain your work

7) Subtract the following rational expression. Simplify your answer: Show or explain your work

8) A bird bath that is 5.3 ft tall casts a shadow that is 25.4 ft long. Find the length of the shadow that a 8.2 ft adult elephant casts: Show or explain your work

9) Computer Services Inc. charges $8 more for a repair than Low Cost

Computer Repair. If the ratio of the costs is 3 to 6, what will it cost for the

repair at Low Cost Computer Repair? Show or explain your work

10) Solve the following equation for x. Show or explain your work

11) Simplify

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