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Math check my answers

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Please check my answers on the following questions

Simplify:

(X^6)^1/2 = x^3

1000000^1/6 I don't know this one

(64n^12)^-1/6 = 1/0.5n^2

(9n^4)^1/2. = 3n^2

36^3/2 = my answer is 2 in the index of the aware root of 36^3

343^-4/3 I don't know this one

Thanks

  • Math check my answers -

    Square root**

  • Math check my answers -

    1000000 = 10^6, so (10^6)^1/6 = 10

    (64n^12)^-1/6 = 1/2 n^2
    64^-1/6 = 1/64^1/6 = 1/2, not 1/.5
    .5 is already 2^-1

    36^3/2 = (36^1/2)^3 = 6^3 = 216

    343 = 7^3, so you have
    1/7^4 = 1/2401

    The others are ok

  • Math check my answers -

    K thank u

  • Math check my answers -

    A rectangle measures 12 cm by 10.5 cm. what is the greatest possible error for each measurement?
    a.
    0.12 cm, 0.105 cm
    c.
    0.5 cm, 0.05 cm
    b.
    6 cm, 5.25 cm
    d.
    0.05 cm, 0.005 cm

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