Yeah I need help with all these. Also, hehe, in the rules, no leet talk? Hackers? Leet talk is for wanna be hackers or people that think they are hackers because they use other peoples hacks. Well anyway, thanks for the help people!! (if i get it)

For problems 12,

write each expression using exponents.

1. (7)(7)(7)

2. (x)(x)(x)(x)(y)(y)(y)(y)(z)

For problems 34,

write each power as a multiplication

expression.

3. 2 4

4. −6xy 3

For problems 58,

evaluate each expression if x = 4,

y = −1, z = −2, and w = 2.5.

5. y 3

6. w(yz + 4)

7. 2x 2 − z 5

8. −2(y 3 + w)

For problems 916,

simplify each expression. Do not use

negative exponents.

9. (2 2 )(2 5 )

10. (r 2 t 4 )(rt 3 )

11. 15m 12 ÷ 3m 7

12. −16m 6 n 8 p 12 ÷ 2m 2 n 3 p 6

13. (m 6 )(m −3 )

14. 6x −2 y −4 z

15. (r −5 )(s 4 )

16. (x −3 y 4 z −2 ) ÷ (xy 2 z −2 )

For problems 1720,

express each number in scientific

notation.

17. 106,000

18. 0.000016

19. (6 X 10 3 )(3 X 10 7 )

20. (3 X 10 −3 )(7 X 10 6 )

For problems 2124,

simplify the following.

21. Find the square root of 64

22. Find the square root of (225/100)

23. Find the negative square root of 121

24. Find the square root of (36/81)

For problems 2528,

estimate each square root to the

nearest whole number.

25. The square root of 15

26. The square root of 61

27. The square root of 555

28. The square root of 153.2

For problems 2931,

If c is the measure of the hypotenuse

and a and b are the measures of the legs, find each missing

measure. Round your answer to the nearest tenth if

necessary.

29. a = 15, b = 18, c =

30. a = 11, c = 21, b =

31. b = 20, c = 40, a =

For problems 3233,

the lengths of three sides of a triangle

are given. Determine whether each triangle is a right

triangle.

32. 6ft, 12ft, 13ft

33. 20ft, 25ft, 29ft