M2L2/Part A: Square Roots

Simplify using rational numbers.

 $\sqrt{64}$  

(a)  

Simplify using rational numbers.

 $-\sqrt{144}$ 

• -12

• can't be done

Simplify using rational numbers.

 $\sqrt{361}$  

(a)  

Simplify using rational numbers.


 $\sqrt{-289}$  

• -17

• Can't be done

Simplify using rational number. Select both possible answers. 


 $\sqrt{\frac{4}{16}}$  

•  $\frac{1}{4}$  

•  $\frac{2}{8}$  

•  $\frac{2}{4}$  

•  $\frac{1}{2}$  

Simplify using rational numbers.


 $\sqrt{0.04}$  

(a)  

Simplify using rational numbers.


 $\pm\sqrt{400}$  

• 200

• -200

• 20

• -20

Simplify using rational numbers.


 $\sqrt{-144}$  

• 12

• -12

• can't be done

• -72

Solve. Select both correct answers.


 $r^2\ =\ \frac{64}{144}$  

•  $\frac{4}{9}$  

•  $-\frac{32}{72}$  

•  $\frac{2}{3}$  

•  $-\frac{8}{12}$  

Solve

x² = 16

• 4

• 4 and -4

• 8

• 8 and -8