| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.84 |
| Score | 0% | 77% |
A coordinate grid is composed of which of the following?
origin |
|
x-axis |
|
y-axis |
|
all of these |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
What is the area of a circle with a diameter of 6?
| 6π | |
| 7π | |
| 9π | |
| 4π |
The formula for area is πr2. Radius is circle \( \frac{diameter}{2} \):
r = \( \frac{d}{2} \)
r = \( \frac{6}{2} \)
r = 3
a = πr2
a = π(32)
a = 9π
Breaking apart a quadratic expression into a pair of binomials is called:
factoring |
|
normalizing |
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squaring |
|
deconstructing |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
If angle a = 32° and angle b = 49° what is the length of angle c?
| 108° | |
| 117° | |
| 99° | |
| 111° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 32° - 49° = 99°
The dimensions of this cube are height (h) = 7, length (l) = 9, and width (w) = 8. What is the volume?
| 21 | |
| 36 | |
| 126 | |
| 504 |
The volume of a cube is height x length x width:
v = h x l x w
v = 7 x 9 x 8
v = 504