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OpenStudy (anonymous):
But if you multiply those numbers then it doesn't equal any of those answers
OpenStudy (phi):
I assume you mean 4^2 * 4^8
that is 4 times itself 10 times
OpenStudy (anonymous):
The answer to the multiplication isn't one of the options, so it must be something else.
OpenStudy (logan13):
@phi yes
OpenStudy (phi):
do you now that
\[ 4^2 = 4\cdot 4 \]
?
and \[ 4^8 = 4 \cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\]
do you see that putting a little 8 in the upper right is short-hand for multiplying 4 times itself 8 times?
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OpenStudy (phi):
so the answer is
\[ 4^2 \cdot 4^8 \\
= 4 \cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4\cdot 4 \cdot 4 \cdot 4\]
OpenStudy (logan13):
so c
OpenStudy (phi):
I posted the answer. count the number of 4's
how many are there being multiplied together?