Question

URGENT!!!!!!

Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer.1 inch ≈ 1.578 × 10 -5 miles.

Answer 1

Answer: The number of inches in 1225 miles is
`7.763* 10^7`

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.

Example: 3000 is written as
`3.0* 10^3`

Given :
`1.578* 10^(-5)` miles = 1 inch

Thus 1 mile =
`(1)/(1.578* 10^(-5))=0.634* 10^5` inches

1225 miles =
`(0.634* 10^5)/(1)* 1225=776.3* 10^(5)=7.763* 10^7` inches