Algebra

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Could someone correct my answers and help with the other problems?

1. Are the following lines parallel, perpendicular, or neither? L1 with equation x – 5y = 10, L2 with equation 5x + y = 5.

Answer: Neither (I'm not to sure but i think this is the right answer)

2. Divide: a^10/a^4

How would I complete this problem?

3. A rectangle has sides of 3x – 4 and 7x + 10.Find the expression that represents its perimeter.

Answers: Answer: P = 20x + 12

4. Write the equation of the line that passes through point (–6, 7) with a slope of 0.

Answer: y = 7

5. Find the slope of the line passing through the points (1, 1) and (3, 3).

Answer: 1

6. Evaluate. 5 • 4 ÷ 2 – 42

Answer: -6

7. Find the slope and the y-intercept.

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