| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
The dimensions of this trapezoid are a = 6, b = 4, c = 7, d = 4, and h = 5. What is the area?
| 12\(\frac{1}{2}\) | |
| 15 | |
| 20 | |
| 28 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(4 + 4)(5)
a = ½(8)(5)
a = ½(40) = \( \frac{40}{2} \)
a = 20
Simplify (y + 1)(y + 6)
| y2 + 5y - 6 | |
| y2 - 7y + 6 | |
| y2 - 5y - 6 | |
| y2 + 7y + 6 |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses:
(y + 1)(y + 6)
(y x y) + (y x 6) + (1 x y) + (1 x 6)
y2 + 6y + y + 6
y2 + 7y + 6
If side x = 13cm, side y = 13cm, and side z = 13cm what is the perimeter of this triangle?
| 39cm | |
| 38cm | |
| 37cm | |
| 33cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 13cm + 13cm + 13cm = 39cm
The dimensions of this cube are height (h) = 8, length (l) = 6, and width (w) = 4. What is the volume?
| 28 | |
| 135 | |
| 225 | |
| 192 |
The volume of a cube is height x length x width:
v = h x l x w
v = 8 x 6 x 4
v = 192
On this circle, line segment AB is the:
chord |
|
radius |
|
circumference |
|
diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).