Question

Express the numbers 0.00087 and 54,200,000 in scientific notation

Answer 1

Answer: a) $8.7\times 10^{-4}$

b) $5.42\times 10^{6}$

Explanation:

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as $5.0\times 10^3$

a) 0.00087

This number is written in scientific notation as : $8.7\times 10^{-4}$

b) 54,200,00

This number is written in scientific notation as : $5.42\times 10^{6}$

Answer 2

8.7 x 10^-4
5.42 x 10^7