She is scientific notation to determine which of these numbers has the least value 98,789,000 $987 million 890,000 or 89 million $987,000 right your answer in scientific
notation.
To compare these numbers using scientific notation, we need to express each number in the format of a × 10^b, where a is a number between 1 and 10, and b is an integer.
98,789,000 can be written as 9.8789 × 10^7
$987 million can be written as 9.87 × 10^8
890,000 can be written as 8.9 × 10^5
89 million can be written as 8.9 × 10^7
$987,000 can be written as 9.87 × 10^5
Among these numbers, the least value can be identified by comparing the exponents (b values) since the coefficient (a value) is similar in most.
Comparing the exponents:
10^5 < 10^7 < 10^7 < 10^8
Therefore, the number with the least value is 890,000, which can be expressed in scientific notation as 8.9 × 10^5.