SOLUTION: at a grocery store, the number of customers arriving per hour is shown by the function f(x)=2^(x+1). find the number of customers that arrived in the 6th hour

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Question 833342: at a grocery store, the number of customers arriving per hour is shown by the function f(x)=2^(x+1). find the number of customers that arrived in the 6th hour
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
at a grocery store, the number of customers arriving per hour is shown by the function f(x)=2^(x+1). find the number of customers that arrived in the 6th hour
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f(6) = 2^7 = 128
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Cheers,
Stan H.
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Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
After 5 hrs, the number arriving would be
+f%285%29+
After 6 hrs, the number arriving would be
+f%286%29+
The number arriving during the 6th hr is:
+f%286%29+-+f%285%29+
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+f%286%29+=+2%5E%28+6%2B1+%29+
+f%286%29+=+2%5E7+
+f%286%29+=+128+
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+f%285%29+=+2%5E%28+5%2B1+%29+
+f%285%29+=+2%5E6+
+f%285%29+=+64+
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+f%286%29+-+f%285%29+=+128+-+64+
+f%286%29+-+f%285%29+=+64+
64 customers arrived in the 6th hr