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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 17 Page 378

Think of a number that when raised to the second power results in 2500.

- 50 and 50

Practice makes perfect

We want to find both square roots of 2500. ± sqrt(2500)We need to think of a number that when raised to the second power results in 2500. This number is 50.

50^2

Calculate power

2500 ✓

With this information, we can say that the square roots of 2500 are ±50, which can be also written as - 50 and 50. ± sqrt(2500) = ± 50

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