Understanding Square Roots and Cube Roots

What is the square root of 64?

• 7

• 6

• 9

• 8

Why does the square root of a negative number not have a real solution?

• Because negative numbers are not real

• Because negative numbers are imaginary

• Because no number multiplied by itself can be negative

• Because negative numbers are complex

Estimate the square root of 22 using a number line. Which integer is it closest to?

• 5

• 6

• 4

• 3

Using the formula d = 1.22 * √h, how far can a person see from a height of 1002 feet?

• 40.2 miles

• 38.6 miles

• 42.1 miles

• 35.4 miles

What is the cube root of 125?

• 6

• 5

• 4

• 7

How do cube roots differ from square roots when dealing with negative numbers?

• Cube roots of negative numbers have real solutions

• Cube roots of negative numbers are positive

• Cube roots of negative numbers are imaginary

• Cube roots of negative numbers are not real

Estimate the cube root of 49. Which integer is it closest to?

• 2

• 3

• 4

• 5

What is the cube root of 2197?

• 12

• 14

• 13

• 11

Which integer is the cube root of negative 75 closest to?

• -3

• -4

• -5

• -6

What is the cube root of 64?

• 4

• 3

• 5

• 2