Questions: Rewrite this number in appropriate scientific notation: 42,890,000

Rewrite the number \( 42,890,000 \) in appropriate scientific notation.

Identify the coefficient.

Move the decimal point to the left until there is only one non-zero digit to the left of the decimal point. The number becomes \( 4.289 \).

Determine the exponent.

Count how many places the decimal point was moved. In this case, it was moved 7 places to the left, so the exponent is \( 7 \).

Write in scientific notation.

Combine the coefficient and the exponent: \( 4.289 \times 10^7 \).

The number \( 42,890,000 \) in scientific notation is \( \boxed{4.289 \times 10^7} \).

The number \( 42,890,000 \) in scientific notation is \( \boxed{4.289 \times 10^7} \).