| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.32 |
| Score | 0% | 66% |
What is 6a - 8a?
| 48a | |
| -2a | |
| -2 | |
| a2 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
6a - 8a = -2a
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
|
intersects |
|
trisects |
|
bisects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
If a = c = 3, b = d = 6, what is the area of this rectangle?
| 42 | |
| 18 | |
| 28 | |
| 36 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 6
a = 18
The dimensions of this cube are height (h) = 5, length (l) = 9, and width (w) = 4. What is the volume?
| 18 | |
| 24 | |
| 126 | |
| 180 |
The volume of a cube is height x length x width:
v = h x l x w
v = 5 x 9 x 4
v = 180
For this diagram, the Pythagorean theorem states that b2 = ?
c - a |
|
c2 - a2 |
|
a2 - c2 |
|
c2 + a2 |
The Pythagorean theorem defines the relationship between the side lengths of a right triangle. The length of the hypotenuse squared (c2) is equal to the sum of the two perpendicular sides squared (a2 + b2): c2 = a2 + b2 or, solved for c, \(c = \sqrt{a + b}\)