Perimeter, Area and Volume of Polynomials

What is the width of the rectangle?

• 
  2n + 12

• 
  2n - 12

• 
  2n + 3

• 
  2n - 3

What is the perimeter of an equilateral triangle whose side lengths are 2x² - 6x + 3?

• 6x² - 18x + 9

• 4x² - 12x + 6

• 2/3x² - 2x + 1

• I don't know what an equilateral triangle is

Think - what is the length and width of the entire space?

• 4x + 39

• 4x² + 78x

• 4x² + 78x + 308

• x²+39x + 308

The length of a rectangle is 5 in. longer than its width. Which of the following polynomials represent the area of the rectangle? *Hint: Draw and label a picture

• 5x²

• 6x

• x²+5

• x²+5x

Find perimeter of triangle whose sides measure

(2x - z)

(5y - 6x)

(- 4y + 7z)

• -4x +6y + 6z

• 4x + y + 6z

• -4x - y + 6z

• -4x + y + 6z

Find the volume of the rectangular prism with length ( x + 2) width ( x - 4) and height ( 2x + 1).  

• x² -8x

• x² -2x -8

• 2x³-3x² -18x-8

• 2x³ -8

The length of a square is x + 2 units.  Find the area.

• 4x + 8 units squared

• x² + 4x + 4 units squared

• x² + 4 units squared

• Not enough information

The perimeter of the triangle is 3x³ + 4x² + 8x + 15. If the shortest side is 2x² + 12x, the longest side (the hypotenuse) is x³ - 8x + 7, then what is the missing side length?

• 2x³ + 6x² + 28x + 8

• 2x³ + 2x² + 4x + 8

• 4x³ + 6x² + 12x + 22

• 4x³ + 2x² + 12x + 22

Sara is making a triangle-shaped pennant for her friend. Two sides measure 3x+5 inches and the last side is 2x+1 inches. Help Sara find the perimeter of the pennant.

You want to double the perimeter of Sara's pennant. Two sides of Sara's pennant measure 3x+5 inches and the last side is 2x+1 inches. What is the perimeter of your pennant?