| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.95 |
| Score | 0% | 59% |
The endpoints of this line segment are at (-2, 1) and (2, 5). What is the slope of this line?
| 2\(\frac{1}{2}\) | |
| -2 | |
| 1 | |
| -1 |
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, 1) and (2, 5) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(5.0) - (1.0)}{(2) - (-2)} \) = \( \frac{4}{4} \)If AD = 13 and BD = 5, AB = ?
| 5 | |
| 14 | |
| 8 | |
| 10 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDIf angle a = 66° and angle b = 57° what is the length of angle c?
| 87° | |
| 77° | |
| 57° | |
| 81° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 66° - 57° = 57°
The dimensions of this cube are height (h) = 1, length (l) = 5, and width (w) = 9. What is the surface area?
| 34 | |
| 118 | |
| 228 | |
| 90 |
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 5 x 9) + (2 x 9 x 1) + (2 x 5 x 1)
sa = (90) + (18) + (10)
sa = 118
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
|
the area of a parallelogram is base x height |
|
the perimeter of a parallelogram is the sum of the lengths of all sides |
|
opposite sides and adjacent angles are equal |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).