NC Math 3 Pre-Assessment

Which expression is equivalent to:

 $2x^2-72$  

•  $\left(2x-9\right)\left(x-8\right)$  

•  $\left(2x-9\right)\left(x+8\right)$  

•  $x\left(x-6\right)\left(x-6\right)$  

•  $2\left(x-6\right)\left(x+6\right)$  

Tags

CCSS.HSA.APR.C.4

Jason kicked a ball into the air. The function shown below models the height of the ball, in feet, t seconds after it was kicked. How long does it take the ball to hit the ground?

 $h\left(t\right)=80t-16t^2$  

• 2.5 seconds

• 5 seconds

• 8.5 seconds

• 10 seconds

What is the value of the larger zero of the function defined by

 $x^2+12x+27$  

•  $9$  

•  $3$  

•  $-3$  

•  $-9$  

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

A system of equations is shown below. What is the smallest value of y in the solution set of the system?

 $y=x^2+2x+8$  

 $y=-4x$  

•  $-4$  

•  $-2$  

•  $8$ 

•  $16$  

Tags

CCSS.HSA.REI.C.7

Which graph shows the solution to $y>-3x+2$  ?

• A

• B

• C

• D

Tags

CCSS.HSA.REI.D.12

The difference between two numbers is one. Three times the larger number minus two times the smaller number is 9. What is the value of the larger number?

• 
  

  $5$
  

• $7$

• $6$

• $8$

Tags

CCSS.8.EE.C.8C

A system of inequalities is shown below. Which point is a viable solution to the system?

 $y\le\frac{1}{2}x-4$  

 $y\le0$  
 $x\ge2$  

•  $\left(4,-1\right)$  

•  $\left(3,2\right)$  

•  $\left(5,-2\right)$  

•  $\left(7,0\right)$  

Which expression is equivalent to:

 $\left(3x^5+17x^3-1\right)+\left(-2x^5-6\right)$  

•  $x^5+17x^3-7$  

•  $5x^5+17x^3+7$  

•  $x^5-11x^3-1$  

•  $-6x^5+17x^3+6$  

Tags

CCSS.HSA.APR.A.1

Which equation is equivalent to

 $U=\frac{1}{2}kx^2$  ? 

Hint: Solve for k.

•  $k=\frac{2U}{x^2}$  

•  $k=\frac{U}{2x^2}$  

•  $k=U-\frac{1}{2}x^2$  

•  $k=2U-x^2$  

Tags

CCSS.HSA.CED.A.4

The difference in the measures of two supplementary angles is $76\degree$  . What is the measure of the smaller angle?

•  $14\degree$  

•  $22\degree$  

•  $28\degree$  

•  $52\degree$  

Tags

CCSS.7.G.B.5