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May 22, 2015

Homework Help: Math help please

Posted by Delilah on Monday, May 6, 2013 at 7:46pm.

7. In the expression 7x 5x2 + 5, what is the coefficient of x?

7
5
5
7

8. Write the expression using a single exponent. 2^2 2^8

4^10
2^10
4^16
2^16

9. Write the expression using scientific notation. (2.5 104)(4 103)

10 10^7
10 10^8
1 10^8
10 10^12

My answers:
7. 5
8. 2^10
9. 10 10^7

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