QUESTION 1
Which expression represents the area of a rectangle with sides measuring 6ab3 and 3a2b2?
- 2ab
Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
- 3a3b5
Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
- 3a3b6
Incorrect. You must use the laws of exponents and the formula for the area of a rectangle to find the answer.
- 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 = r2)
- 48x14y6z8
Incorrect. You must use the laws of exponents and the formula for the area of a circle to find the answer.
- 576x14y6z8
Correct! The laws of exponents and the formula for the area of a circle were used to find the answer.
- 48x9y5z6
Incorrect. You must use the laws of exponents and the formula for the area of a circle to find the answer.
- 576x9y5z6
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 = one-half
1
2
bh)
- 20m cubed over 3n squared
20m3
3n2
Correct! The laws of exponents and the formula for the area of a triangle were used to find the answer.
- 17mn-2
Incorrect. You must use the laws of exponents and the formula for the area of a triangle to find the answer.
- 30m5n3
Incorrect. You must use the laws of exponents and the formula for the area of a triangle to find the answer.
- 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 =numerator: the quantity b sub 1 plus b sub 2 all times h; demonimator: 2
(b1 + b2)h
2
- 24x4y8
Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.
- 9x4y8
Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.
- 10x3y5
Correct! The laws of exponents and the formula for the area of a trapezoid were used to find the answer.
- 12x4y8
Incorrect. You must use the laws of exponents and the formula for the area of a trapezoid to find the answer.