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April 19, 2014

Homework Help: 8th Grade Algebra: Answer Check

Posted by Joy on Tuesday, January 20, 2009 at 10:42pm.

Find the length of the 3rd side of each right triangle.

1. 8^2+15^2=c^2 Answer: c=17

2. 5^2+b^2=13^2 Answer: b=12

3. 9^2+13^2=c^2 Answer: c~15.81

Simplify. Assume that all variables are nonnegative.

{ this means square root

4. {12 Answer: 2{3

5. 2{75 Answer: 10{3

6. -3{72 Answer: -18{2

7. {200 Answer: 10{2

8. {3x^2 Answer: 3x

9. {3{18 Answer: 3{6

10. {5{10 Answer: 5{2

11. {15{6 Answer: 3{10

12. {3{27 Answer: 9

13. {18{14x Answer: 6{7x

14. {12{18 Answer: 6{6

15. {2/{5 Answer: {10/5

16. {75/{15 Answer: {5

17. 2/{2 Answer: {2

18. {9/{100 Answer: 3/10

19. -{49/{100 Answer: -7/10

20. {27/{75 Answer 3/5


If I get any of these wrong, can someone please show me how to them correctly ?

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