| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
The endpoints of this line segment are at (-2, 2) and (2, 6). What is the slope of this line?
| -1\(\frac{1}{2}\) | |
| -3 | |
| 1\(\frac{1}{2}\) | |
| 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, 2) and (2, 6) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(6.0) - (2.0)}{(2) - (-2)} \) = \( \frac{4}{4} \)A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
|
quadrilateral |
|
trapezoid |
|
rhombus |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
The formula for the area of a circle is which of the following?
a = π d |
|
a = π r |
|
a = π r2 |
|
a = π d2 |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
The dimensions of this cube are height (h) = 6, length (l) = 2, and width (w) = 3. What is the surface area?
| 72 | |
| 124 | |
| 46 | |
| 286 |
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 2 x 3) + (2 x 3 x 6) + (2 x 2 x 6)
sa = (12) + (36) + (24)
sa = 72
Simplify 3a x 6b.
| 18\( \frac{a}{b} \) | |
| 18ab | |
| 18\( \frac{b}{a} \) | |
| 18a2b2 |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
3a x 6b = (3 x 6) (a x b) = 18ab