Question

solve: 12^(2x)=300
a) 0.95
b) 1.15
c)1.35
d) 2.12

Answer 1

hmmm....

log12(12^2x) = log12(300)
2x = log12(300)
x= (1/2)*log12(300)
x= log12(sqrt(300)) = log12(10sqrt(3))
x=(ln(10sqrt(3)))/ln(12)

x=1.14768546 .=. 1.15 (B)