first we must solve 14.5*10 to the -6 power
10 to the -6 power is 0.000001
so, 14.5 times 0.000001 is 0.0000145
Now to turn 0.0000145 into scientific notation, the decimal needs to be moved 5 places to the right, so the exponent base of 10 will be 5 and since the number is less than 1 the sign of the exponent will be negative,
so you get 1.45*10 to the -5th power
your final answer:
0.0000145 = 1.45*10 to the -5th power