carlaaaa122
carlaaaa122
26-05-2017
Mathematics
contestada
What's the answer for 99 help
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Яɒwɿ
Яɒwɿ
26-05-2017
a. 2^x=15
xlog2=log15
x=log15/log2
x=3.907
b. 4^x=81
xlog4=log81
x=log81/log4
x=3.170
c. 12^x=211
xlog12=log211
x=log211/log12
x=2.154
d. 7^x=289
xlog7=log289
x=log289/log7
x=2.912
Hope I didn't mess up for your sake.
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