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Ronin Choi
English
21 April, 18:29
Find f (-2) for f (x) = 2 (4) ^x
+2
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2
)
Paloma Irwin
21 April, 18:42
0
1/8
Explanation:
Evaluate 2 4^x where x = - 2:
2*4^x = 2/4^2
4^2 = 16:
2/16
The gcd of 2 and 16 is 2, so 2/16 = (2*1) / (2*8) = 2/2*1/8 = 1/8:
Answer: 1/8
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Brooke
21 April, 18:55
0
0.125
Explanation:
=2 (4) ^ (-2) = 2 (0.0625) = 0.125
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