| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.56 |
| Score | 0% | 71% |
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
|
equal length |
|
right angle |
|
parallel |
A trapezoid is a quadrilateral with one set of parallel sides.
If angle a = 58° and angle b = 45° what is the length of angle c?
| 77° | |
| 130° | |
| 102° | |
| 100° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 58° - 45° = 77°
The endpoints of this line segment are at (-2, 3) and (2, -7). What is the slope of this line?
| -2 | |
| -2\(\frac{1}{2}\) | |
| -3 | |
| -1\(\frac{1}{2}\) |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, 3) and (2, -7) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-7.0) - (3.0)}{(2) - (-2)} \) = \( \frac{-10}{4} \)A coordinate grid is composed of which of the following?
y-axis |
|
x-axis |
|
all of these |
|
origin |
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 8a + 5a?
| 13 | |
| 3a2 | |
| 13a | |
| 3 |
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.
8a + 5a = 13a