Extra Credit Quarter 1

Simplify:

 $\sqrt{28}\cdot\sqrt{3}$  

•  $\sqrt{84}$  
  

•  $2\sqrt{21}$  
  

•  $4\sqrt{21}$  
  

•  $2\sqrt{7}\cdot\sqrt{3}$  
  

Simplify:

 $\sqrt{45x^4y^7}$  

•  $3x^2y^3\sqrt{5}$  

•  $9x^2y^3\sqrt{5}$  

•  $3x^2y^3\sqrt{5y}$  

•  $3x^2y^7$  

Rationalize the denominator:
 $\frac{2\sqrt{8}}{\sqrt{12}}$  

•  $\frac{\sqrt{96}}{6}$  

•  $\frac{2\sqrt{6}}{3}$  

•  $\frac{2\sqrt{96}}{12}$  

•  $\frac{4\sqrt{2}}{2\sqrt{3}}$  

Tags

CCSS.HSN.RN.A.2

Multiply:
 $\left(4+\sqrt{2}\right)\left(4-\sqrt{2}\right)$  

•  $16-\sqrt{2}$  

•  $4-\sqrt{2}$  

•   $14$  
  

•  $18$  

What is the midpoint between (3, -1) and (7, -5)

• (5, -2)
• (10, -6)
• (5, -3)
• (2, -2)

Tags

CCSS.HSG.GPE.B.6

A segment has an endpoint of (-4, 5) and midpoint of (7, -9). Find the other endpoint.

• (18, -23)

• (-23, 18)

• (11,4)

• (1.5, -2)

Tags

CCSS.HSG.GPE.B.6

If $\overrightarrow{KM}$  bisects  $\angle LKJ$  and  $m\angle JKM=22\degree$  find  $m\angle LKM$  .

• 22

• 44

• 11

• 68

• not enough information given

Tags

CCSS.HSG.CO.C.9

 $\overrightarrow{AB}$ bisects  $\angle CAD$ .

 Solve for x.

• 7

• 13.4

• 12.3

• 5.9

Tags

CCSS.HSG.CO.C.9

B is the midpoint of AC.  Find AB.

• 2
• 16
• 8
• 4

Tags

CCSS.HSG.CO.C.10

 $\overrightarrow{EJ}\$  bisects  $\angle DEF$ ,  $m\angle DEJ=5x+7$  ,  $m\angle JEF=8x-8$ .
Find x.

• 5

• 2

• 6

• 13

Tags

CCSS.HSG.CO.C.9