Question

Question 2(Multiple Choice Worth 2 points)

Answer 1

The approximation of -8 plus the square root of 20 is given by:

-3.5.

How a number is rounded to the nearest tenth?

To round a number to the nearest tenth, it will have only one decimal digit, and the rule is as follows:

• If the second decimal digit is less than 5, the first decimal digit remains constant.

• If the second decimal digit is of 5 or greater, one is added to the first decimal digit.

The square root of 20 is given by:

sqrt(20) = 4.47.

7 > 5, hence, rounded to the nearest tenth:

sqrt(20) = 4.5.

Then:

-8 + 4.5 = -3.5.

Which is the approximation.

More can be learned about rounding concepts at brainly.com/question/25309465

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