Exercise 13 Page 71

We want to evaluate the given quotient and express our answer in scientific notation. To do so we will use the Quotient of Powers Property.

7.2* 10^(- 8)/3* 10^(- 2)

WriteProdFrac

Write as a product of fractions

(7.2/3) ( 10^(- 8)/10^(- 2) )

CalcQuot

Calculate quotient

2.4 ( 10^(- 8)/10^(- 2) )

DivPow

a^m/a^n= a^(m-n)

2.4 * 10^(- 8-(- 2))

SubNeg

a-(- b)=a+b

2.4 * 10^(- 6)

Our result is already written in scientific notation, so 2.4 * 10^(- 6) is our final answer.