CA review 1 Algebra

If f(x) = 2(x - 3) + 4, find f(-8).

• 2

• 4

• 18

• -18

Solve the equations for m, if

 d = $\frac{m}{v}$   

• m= $\frac{d}{v}$  

• m=vd

• m=md

• m= $\frac{v}{d}$  

If a=bc, solve for c.

• c=ab

• b=ca

• c= $\frac{a}{b}$

• b= $\frac{a}{c}$

The sides of a rectangle have a length of x + 4 units and a width of 2x + 5 units. Which of the following represents the perimeter of the rectangle?

• 3x + 9 units

• 6x + 18 units

• 4x + 10 units

• 2x + 8 units

The length and width of a rectangle are represented by 2x + 3 and x – 1 respectively. Which of the following represents the perimeter of the rectangle?

• 3x + 2

• 3x + 4

• 6x + 4

• 2x² + x – 3

Find the solution set for this inequality -2 x + 4 > -4x + 8.

• x > 2

• x < 2

• x < -2

• x > -2

A linear inequality in one variable is shown below.
  $\frac{1}{2}$ (2x – 8) ≤ 3(x – 5) + 7

Which inequality represents the solution

• x ≤ –5Bx ≥ –5Cx ≤ 2Dx ≥ 2

• x ≥ –5Cx ≤ 2Dx ≥ 2

• x ≤ 2

• x ≥ 2

Solve for x in the equation below:

3(x - 5) = 5x - (3 - x)

• -4

• 4

• 15

• -15

What value of n makes the equation 4(0.5n − 3) = n − 0.25(12 − 8n) true?

• 3

• -3

• 9

• -9