Glencoe Math: Course 3, Volume 1
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Glencoe Math: Course 3, Volume 1 View details
8. Roots
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Exercise 5 Page 75

Think of a number that when raised to the second power results in 2.56.

- 1.6

Practice makes perfect

We want to find the negative square root of 2.56. - sqrt(2.56)We need to think of a number that when raised to the second power results in 2.56. This number is 1.6.

(1.6)^2
2.56 ✓

With this information, we can say that the negative square root of 2.56 is - 1.6. - sqrt(2.56) = - 1.6