algebra

1. Which of the following is equivalent to x5y2/xy2 when x ≠ 0 and y ≠ 0?
A. x6y5
B. x5y
C. x4y
D. x4 *********

2. Which expression is NOT equal to 125?
A. 5(5^3/2/5)^2 ***************
B. (5^3/5^4)^-3
C.5^-2/5^-5
D. 5(5^5/5^3)

3. A fraction reduces to 36. If its denominator is 6x5, what is its numerator?
A. 63x
B. 63x5 **************
C. 6x5
D. 67x5

4. Which is the correct simplification of 5.4 x 10^12/1.2 x 12^3 written in scientific notation?
A. 4.5 × 10^7
B. 4.5 × 10^9 *************
C. 45 × 10^6
D. 6.48 × 10^7 5.


Which of the following statements is not true regarding operations with exponents?
A. To divide powers with the same base, subtract the exponents.
B. To subtract powers with the same base, divide the exponents. ************
C. To multiply powers with the same base, add the exponents.
D. To raise a power to a power, multiply the exponents.

  1. 👍
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  3. 👁
  1. check the wording on 3 and 4

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  2. all ok, except I can't decipher #3.
    I expect some characters are missing or transposed.

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  3. 1.- D
    2.- A
    3.- B
    4.- B
    5.- B

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  4. He right

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  5. 1. D
    2. A
    3. B
    4. B
    5. B
    100%

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  6. d a b b b is correct i just did it

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  7. dabb

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  8. I just got an 80%
    It’s
    1-d
    2-a
    3-b
    4-d
    5-b

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