Math Exam First prep

If  $\frac{x+\ 4}{3-x}\ \notin Q$ then X=..... 

• 4

• 3

• -3

• -4

 $if\ \left(2x\ +\ a\right)^2=4x^2\ +12xy+\ 9y^2$  
then a = ......

• 9

• 3

• 6

• 9

Tags

CCSS.HSA.APR.C.4

The mode of 3 , 4 , 5 , 4 , 3 , 6 , x + 1 is 4 , then x = .....

• 2

• 4

• 5

• 3

Tags

CCSS.6.SP.B.5C

 $\ The\ \ H\ .\ C\ .\ F\ \ of\ \ 6x^2y^{3\ }\ \ +\ 12xy^4\ \ -\ 8x^3y^2\ \ is\ ......$  

•  $2xy$  

•  $2xy^2$  

•  $2x^2y^2$  

•  $2x^2y$  

The supplement of right angle is ...... angle

• acute

• right

• obtuse

• straight

Tags

CCSS.7.G.B.5

 $\Delta ABC\equiv\Delta XYZ\ \$ AB + XY = 20 cm ,  perimeter of triangle ABC= 30 cm 

and XZ = 12 cm , then BC = ... cm 

• 10

• 18

• 32

• 8

Tags

CCSS.HSG.CO.B.7

All the following are conditions for congruent of two triangles except

• Two sides and included angle

• each side in first equal corresponding parts in the second

• each angle equal corresponding parts in the second

• Two angles and one side

Tags

CCSS.HSG.CO.B.7

The value of x is ....

• 20

• 40

• 120

• 60

Tags

CCSS.7.G.B.5