Math Help? Check my answers.

1. Name the coefficients in the polynomial. 4x^2 + 3x - 3
4, -3, -3
4, 3,
4, 3, 3,
-4, -3,

2. How many terms are in the following polynomial? 6x^4 + 3x^3 - 2x^2 + 15x - 14
5
4
3
2

3. In the expression -7x - 5x^2 + 5, what is the coefficient of x?
7
5
-5
-7

4. Write the expression using a single exponent. 2^2 • 2^8
4^10
2^10
4^16
2^16

5. Write the expression using scientific notation. (2.5 • 10^4)(4 • 10^3)
10 • 10^7
10 • 10^8
1 • 10^8
10 • 10^12


1. B
2. C
3. C
4. A
5. A

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asked by Lydia
  1. 2. disagree
    3. disagree
    4. disagree
    5. disagree sort of. A works but 10*10^7 is usually written 1 * 10^8 which is C

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    posted by Damon
  2. Sorry! How about now?
    2. B
    3. A
    4. D

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    posted by Lydia
  3. 2.
    6x^4 + 3x^3 - 2x^2 + 15x - 14
    one ,,, two,,,three,,four, five

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    posted by Damon
  4. 3.
    ***** -7x***** - 5x^2 + 5, what is the coefficient of x

    -7x
    so -7 is coef of x !!!

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    posted by Damon
  5. 4. Write the expression using a single exponent. 2^2 • 2^8

    Oh my !

    a^x * a^y = a^(x+y) !!!!!

    2^2 * 2^8 = 2^(2+8)
    which is
    2^10

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    posted by Damon
  6. ummmmmmm no

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