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Mathematics 7 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

@AlexandervonHumboldt2

OpenStudy (alexandervonhumboldt2):

yes

OpenStudy (anonymous):

What is the value of the expression? 4^3 • 4^−5

OpenStudy (anonymous):

A. 4^−15 B. 4^−2 C. 4^2 D. 4^8

OpenStudy (alexandervonhumboldt2):

add exponents

OpenStudy (alexandervonhumboldt2):

4^(3-5)

OpenStudy (anonymous):

ok, then what

OpenStudy (alexandervonhumboldt2):

simplify

OpenStudy (alexandervonhumboldt2):

3-5=-2 then 4^-2

OpenStudy (anonymous):

i got 1/16

OpenStudy (anonymous):

not 1/16 is mean 1/4^2

OpenStudy (alexandervonhumboldt2):

well yeah but you dont need to do this

OpenStudy (alexandervonhumboldt2):

your base is 4

OpenStudy (alexandervonhumboldt2):

just 4^-2

OpenStudy (anonymous):

oh so B?

OpenStudy (alexandervonhumboldt2):

yes

OpenStudy (anonymous):

thx :)

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