QUESTION 1

Which expression represents the area of a rectangle with sides measuring 6ab3 and 3a2b2?

  1. 2ab
    Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
  2. 3a3b5
    Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
  3. 3a3b6
    Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
  4. 18a3b6
    Correct! The laws of exponents and the formula for the area of a rectangle were used to find the answer.
QUESTION 2

The radius of a circle measures 24x7y3z4. If x > 0 and y > 0, what is the area of the circle? (Hint: Area of a Circle = pir2)

  1. 48x14y6z8pi
    Incorrect. You must use the laws of exponents and the formula for the area of a circle to find the answer.
  2. 576x14y6z8pi
    Correct! The laws of exponents and the formula for the area of a circle were used to find the answer.
  3. 48x9y5z6pi
    Incorrect. You must use the laws of exponents and the formula for the area of a circle to find the answer.
  4. 576x9y5z6pi
    Incorrect. You must use the laws of exponents and the formula for the area of a circle to find the answer.
QUESTION 3

The area of a triangle measures 10m5n. The base of the triangle measures 3m2n3. If m > 0 and n > 0, what is the height of the triangle? (Hint: Area of a Triangle = 1 2 bh)

  1. 20m3 3n2
    Correct! The laws of exponents and the formula for the area of a triangle were used to find the answer.
  2. 17mn-2
    Incorrect. You must use the laws of exponents and the formula for the area of a triangle to find the answer.
  3. 30m5n3
    Incorrect. You must use the laws of exponents and the formula for the area of a triangle to find the answer.
  4. 17m5n3
    Incorrect. You must use the laws of exponents and the formula for the area of a triangle to find the answer.
QUESTION 4

The height of a trapezoid measures 4x2y2. The bases of the trapezoid measure 3xy3 and 2xy3. If x > 0 and y > 0, what is the area of the trapezoid? (Hint: Area of a Trapezoid = (b1 + b2)h 2

  1. 24x4y8
    Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.
  2. 9x4y8
    Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.
  3. 10x3y5
    Correct! The laws of exponents and the formula for the area of a trapezoid were used to find the answer.
  4. 12x4y8
    Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.