Question

1. Write the following number in scientific notation: 0.000089

O 89 x 106
8.9 x 105
89 x 10-6
8.9 x 10-5

Answer 1

To write the number 0.000089 in scientific notation, we need to move the decimal point to the right until there is only one non-zero digit to the left of the decimal point, and count the number of places we moved the decimal point. In this case, we need to move the decimal point 5 places to the right:

0.000089 = 8.9 × 10^(-5)

Therefore, the number 0.000089 in scientific notation is 8.9 × 10^(-5).