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AMC 12/AHSME
1987 AMC 12/AHSME
4
Exponent Practice
Exponent Practice
Source:
March 27, 2006
Problem Statement
2
1
+
2
0
+
2
−
1
2
−
2
+
2
−
3
+
2
−
4
\frac{2^1+2^0+2^{-1}}{2^{-2}+2^{-3}+2^{-4}}
2
−
2
+
2
−
3
+
2
−
4
2
1
+
2
0
+
2
−
1
equals
(A)
6
(B)
8
(C)
31
2
(D)
24
(E)
512
\text{(A)} \ 6 \qquad \text{(B)} \ 8 \qquad \text{(C)} \ \frac{31}{2} \qquad \text{(D)} \ 24 \qquad \text{(E)} \ 512
(A)
6
(B)
8
(C)
2
31
(D)
24
(E)
512
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