| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
If BD = 23 and AD = 28, AB = ?
| 4 | |
| 19 | |
| 9 | |
| 5 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDWhich of the following expressions contains exactly two terms?
quadratic |
|
polynomial |
|
binomial |
|
monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
On this circle, a line segment connecting point A to point D is called:
chord |
|
diameter |
|
radius |
|
circumference |
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).
What is the area of a circle with a radius of 3?
| 81π | |
| 64π | |
| 9π | |
| 7π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π
The dimensions of this cube are height (h) = 4, length (l) = 4, and width (w) = 3. What is the surface area?
| 176 | |
| 228 | |
| 256 | |
| 80 |
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 4 x 3) + (2 x 3 x 4) + (2 x 4 x 4)
sa = (24) + (24) + (32)
sa = 80