Question how to solve
2^-a = 0,9
clear explanation please
24a - 2
thats no help ??
2^-a = 0,9 Take the log of both sides
-a log(2) =log(0.9) Divide both sides by log(2)
-a = log(0.9) / log(2)
-a =-0.152 Multiply both sides by (-1)
a = 0.152