If (0.2)x = 2 and log 2 = 0.3010, then the value of x to the nearest tenth is:

Question

pls give me answer same time, i m duing study in 12th 

Answer 1

0.2^x = 2

log 0.2^x = log 2

x log 0.2 = 0.301

x = 0.301/log 0.2

x = -0.43063364398

 

To the nearest tenth, x = -0.4