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Math Help - math problems

  1. #1
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    math problems

    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
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  2. #2
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    Ottawa, Canada
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    Quote Originally Posted by Butcher1993 View Post
    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.
    Why did you post that before ALL your homework?
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  3. #3
    MHF Contributor
    skeeter's Avatar
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    exponents are written with a caret ...

    3^2 = 3 times 3


    quite a list of laundry ... what have you accomplished on any of it?

    show some effort to get some help.
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  4. #4
    Newbie
    Joined
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    Quote Originally Posted by Wilmer View Post
    Why did you post that before ALL your homework?
    I don't know... just thought it was funny.

    Quote Originally Posted by skeeter View Post
    exponents are written with a caret ...

    3^2 = 3 times 3


    quite a list of laundry ... what have you accomplished on any of it?

    show some effort to get some help.

    I knew how to do it before, but I forget things quickly.

    1. 7^3
    2. x^4 y^4 z^1 Is this one right, Im not sure im remembering correctly.
    3. 2x2x2x2

    Im not usually that good at math, but my grades so far are the best I have ever gotten and I want to keep them that way.

    0910s1compapp 67 (96 %)
    0910s1eng2 277 (84 %)
    0910s1worldhist 190 (90 %)
    0910s1comp 175 (117 %)
    0910s1alg1b 114 (114 %)
    0910s1bio 222 (101 %)
    0910s1pe 204 (97 %)
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  5. #5
    Flow Master
    mr fantastic's Avatar
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    You have posted way too many questions in one thread. No more than three questions per thread please. And show all your working for each question and clearly state where you get stuck.

    And please note that MHF is NOT a 'Do all my homework please' website.

    Thread closed.
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