MathDB
Problems
Contests
National and Regional Contests
USA Contests
MAA AMC
AMC 12/AHSME
1957 AMC 12/AHSME
33
33
Part of
1957 AMC 12/AHSME
Problems
(1)
Exponential Equation
Source:
6/8/2009
If 9^{x \plus{} 2} \equal{} 240 \plus{} 9^x, then the value of
x
x
x
is:
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A
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0.1
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B
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0.2
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C
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0.3
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D
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0.4
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E
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0.5
<span class='latex-bold'>(A)</span>\ 0.1 \qquad <span class='latex-bold'>(B)</span>\ 0.2\qquad <span class='latex-bold'>(C)</span>\ 0.3\qquad <span class='latex-bold'>(D)</span>\ 0.4\qquad <span class='latex-bold'>(E)</span>\ 0.5
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0.1
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B
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0.2
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C
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0.3
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D
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0.4
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E
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0.5