| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.88 |
| Score | 0% | 58% |
The dimensions of this cylinder are height (h) = 2 and radius (r) = 7. What is the volume?
| 9π | |
| 245π | |
| 98π | |
| 48π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(72 x 2)
v = 98π
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h2 x l2 x w2 |
|
lw x wh + lh |
|
h x l x w |
|
2lw x 2wh + 2lh |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
Simplify (y + 2)(y - 3)
| y2 - y - 6 | |
| y2 + y - 6 | |
| y2 + 5y + 6 | |
| y2 - 5y + 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 + 2)(y - 3)
(y x y) + (y x -3) + (2 x y) + (2 x -3)
y2 - 3y + 2y - 6
y2 - y - 6
The dimensions of this cube are height (h) = 9, length (l) = 6, and width (w) = 2. What is the surface area?
| 92 | |
| 168 | |
| 262 | |
| 124 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 6 x 2) + (2 x 2 x 9) + (2 x 6 x 9)
sa = (24) + (36) + (108)
sa = 168
On this circle, line segment CD is the:
chord |
|
circumference |
|
radius |
|
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).