Exponents and Roots

What does this symbol mean?

 $\pm$  

• square root

• exponent

• cube

• plus or minus

What does this symbol mean?

 $\sqrt{ }$ 

• square root

• exponent

• cube

• plus or minus

9² = ?

• 18

• 92

• 81

• 3

4² = ?

• 16

• 8

• 42

• 2

2³ = ?

• 8

• 6

• 16

• 4

4³ = ?

• 64

• 12

• 16

• 43

 $\sqrt{36\ }\ =\ ?$  

• 4

• 6

• 18

• 12

What is the principle square root of 49?

• 6

• 7

• 8

• 9

What is the cube root of 8?

• 8

• 2

• 3

• 4

x³ = 27. What is x equal to?

• 3

• 4

• 5

• 5.2