body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Big Ideas Math: Modeling Real Life, Grade 8

BI

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

1. Finding Square Roots

Continue to next subchapter

Exercise 13 Page 378

Think of a number that when raised to the second power results in 144.

12 and -12

Practice makes perfect

We want to find both square roots of 144. ± sqrt(144)We need to think of a number that when raised to the second power results in 144. This number is 12.

12^2

Calculate power

144 ✓

With this information, we can say that the square roots of 144 are ± 12, which can be also written as 12 and -12. ± sqrt(144) = ± 12

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