22.5 week review (Alg)

Add or Subtract to Simplify:
(5x + x² - 4) - (4x - x² + 6)

• 2x² + x + 2 
• x + 2
• 2x² + x - 10 
• x - 10 

Tags

CCSS.HSA.APR.A.1

Simplify the following:
 $2x^{-3}y^2z^{-4}$  

•  $2x^3y^2z^4$  

•  $\frac{2}{x^3y^2z^4}$  

•  $\frac{2y^2}{x^3z^4}$  

•  $\frac{y^2}{2x^3z^4}$  

Simplify the expression:

5²⋅5¹⋅5⁴

• 5⁷

• 5⁸

• 125⁷

• 125⁸

(n²)³

• n⁶

• n⁵

• n⁸

• 3n²

Simplify (7a²)(5a⁶b)²

• 35a¹⁴b²
• 175a¹²b²
• 175a¹⁴b²
• 35a¹⁴b

• A

• B

• C

• D

• b = 3A - a - c
• b = -3A + a - c
• b = -3A - a - c 
• b = 2A - c

There are 15 animals in a barn.  These animals are horses and chickens.  There are 44 legs in all.  Which system of equations represents the situation?

• x + y = 15
  4x + 2y = 44
• 4x + 2y = 15
  x + y = 44
• x = 2y + 44
  4x = y + 15
• 2x - 4y = 44
  x - y = 15

Tags

CCSS.HSA.CED.A.3

How many solutions?

• One solution

• No solutions

• Infinitely many solutions

Solve  the system of equations.  
   x + 5y = -27
-2x - 5y = 24

• (3, 6)
• (-3, -6)
• (-3, -4)
• (3, -6)

Tags

CCSS.HSA.REI.C.6

CCSS.8.EE.C.8B