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Big Ideas Math: Modeling Real Life, Grade 8

BI

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

Chapter Review

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Exercise 2 Page 417

Think of a number that is 925 when it is raised to the second power.

- 3/5

Practice makes perfect

We want to find the negative square root of 925. - sqrt(9/25)First we will ignore the negative and think of a number that is 925 when it is raised to the second power. We can see that this number is 35.

3^2/5^2

Calculate power

9/25 ✓

This means that the negative square root of 925 is - 35. - sqrt(9/25) = - 3/5

Subchapter links

1 Finding Square Roots p.417

2 The Pythagorean Theorem p.417

3 Finding Cube Roots p.418

4 Rational Numbers p.418

5 Irrational Numbers p.419

6 The Converse of the Pythagorean Theorem p.419