Approximating Square Roots and Expressions

The video tutorial explains how to approximate the square root of 8 by finding its decimal equivalent. It starts by identifying the integers between which root 8 lies and then divides the interval into equal parts to estimate the decimal value. The tutorial concludes with adding 5 to the approximation to find the final answer.

What is the first step in approximating the expression involving the square root of 8?

• Find the decimal equivalent of the square root of 8

• Subtract 5 from the square root of 8

• Add 5 to the square root of 8

• Multiply the square root of 8 by 2

Which two square roots are used to find the approximation of the square root of 8?

• Square roots of 6 and 7

• Square roots of 1 and 2

• Square roots of 4 and 9

• Square roots of 3 and 5

How many equal parts is the interval between the square roots of 4 and 9 divided into?

• Three equal parts

• Four equal parts

• Six equal parts

• Five equal parts

What is the approximate decimal value of the square root of 8?

• 2.4

• 3.0

• 2.8

• 2.6

What is the final result when 5 is added to the approximate value of the square root of 8?

• 6.8

• 7.0

• 7.8

• 8.0