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Mathematics 18 Online
OpenStudy (kay.baby.):

WILL MEDAL Which expression is equivalent to 2^4 x 2^-7 ? 1/2^11 or 1/2^3 or 2^3 or 2^11?

OpenStudy (kay.baby.):

2^4 x 2^-7

OpenStudy (kay.baby.):

1/2^11 or 1/2^3 or 2^3 or 2^11?

OpenStudy (danieldjpon3):

So 2^4 times 2^-7 equals to 4

OpenStudy (3mar):

You mean: \[2^4\times2^{-7}\] Then its result will be \[2^{-3}=\frac{ 1 }{ 2^3 }\] The middle choice. Hope that helps

OpenStudy (kay.baby.):

thanks so much

OpenStudy (3mar):

Why "So 2^4 times 2^-7 equals to 4", @danieldjpon3??

OpenStudy (danieldjpon3):

ummm well i did the math and i got 4

OpenStudy (3mar):

Could you see my answer and check it if it is correct or not?

OpenStudy (danieldjpon3):

2x2x2x2 = 32 right? and then 2^-7 is -.128 right?

OpenStudy (danieldjpon3):

or .128

OpenStudy (danieldjpon3):

and then 32 times .128 is 4

OpenStudy (danieldjpon3):

if rounding to the nearest whole number

OpenStudy (3mar):

You are welcome, Kay.Baby! Any time.

OpenStudy (danieldjpon3):

Oh well

OpenStudy (3mar):

Got it @danieldjpon3??

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