Question

use scientific notation to determine which of these numbers has the least value: 98,789,000;987,890,000 or 89,987,000. Write your answer in scientific notation, expressed to exact decimal place

Answer 1

To compare the numbers in scientific notation, we need to express them in the same format.

98,789,000 in scientific notation is 9.8789 x 10^7.
987,890,000 in scientific notation is 9.8789 x 10^8.
89,987,000 in scientific notation is 8.9987 x 10^7.

Comparing the exponents, we can see that 8.9987 x 10^7 (89,987,000) has the least value, since it has the smallest exponent compared to the other numbers.