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Key Quiz 7.2
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1
Write 73 ÷ 75 as a single power using only positive exponents:
A)1/12
B)7-2
C)1/72
D)1/715
2
Write (m12)-2 as a single power using positive exponents only:
A)m24
B)1/m6
C)1/m10
D)1/m24
3
Evaluate: (1/2)-3
A)8
B)6
C)-1/8
D)-1/6
4
Rewrite 4-3 as a single power with 2 as a base and using only positive exponents.
A)26
B)1/2
C)1/26
D)1/28
5
If a trillion is a thousand billion, write a trillionth as a power of 10.
A)10-15
B)10-12
C)10-9
D)1012





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