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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 7 Page 375

Think of a number that when raised to the second power results in 1100.

- 1/10

Practice makes perfect

We want to find the negative square root of 1100. - sqrt(1/100)We need to think of a number that when raised to the second power results in 1100. We can see that this number is 110.

(1/10)^2

(a/b)^m=a^m/b^m

1^2/10^2

Calculate power

1/100 ✓

With this information, we can say that the negative square root of 1100 is - 110. - sqrt(1/100) = - 1/10

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