Question

Part I: Use scientific notation to estimate the number of hours in one year.

Part II: Use scientific notation to calculate the exact number of hours in one year.

Part III: In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences in your answers.

Answer 1

In one hour 60 sec x 60 min = 3600 sec

One day 3600 x 24 = 86400 sec

One calendar year (365 days) = 86400 x 365 = 31536000 sec

Can be written as: 3.154 x 10 7 sec or 3.154e+7 sec