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Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

1. Finding Square Roots

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Exercise 4 Page 378

Use the Quotient of Powers Property.

6* 10^(- 9)

Practice makes perfect

We want to evaluate the quotient. To do so, we will use the Quotient of Powers Property.

(6.6* 10^(- 5))÷(1.1* 10^4)

a÷ b=a/b

(6.6* 10^(- 5))/(1.1* 10^4)

Remove parentheses

6.6* 10^(- 5)/1.1* 10^4

Write as a product of fractions

6.6/1.1* 10^(- 5)/10^4

Calculate quotient

6* 10^(- 5)/10^4

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

6*10^(- 5-4)

Subtract term

6* 10^(- 9)

Notice that our result is already written in scientific notation.

Subchapter links

Try It p.374-376

Self-Assessment for Concepts & Skills p.376

Self-Assessment for Problem Solving p.377

Review & Refresh p.378

Concepts, Skills, & Problem Solving p.378-380