| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.57 |
| Score | 0% | 71% |
A trapezoid is a quadrilateral with one set of __________ sides.
right angle |
|
equal length |
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parallel |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
What is 3a4 + 9a4?
| 12a4 | |
| a48 | |
| 12a8 | |
| -6 |
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.
3a4 + 9a4 = 12a4
The endpoints of this line segment are at (-2, 7) and (2, -1). What is the slope of this line?
| -1\(\frac{1}{2}\) | |
| 2\(\frac{1}{2}\) | |
| -2 | |
| 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, 7) and (2, -1) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-1.0) - (7.0)}{(2) - (-2)} \) = \( \frac{-8}{4} \)Simplify 2a x 6b.
| 12a2b2 | |
| 12ab | |
| 12\( \frac{b}{a} \) | |
| 12\( \frac{a}{b} \) |
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.
2a x 6b = (2 x 6) (a x b) = 12ab
If a = c = 2, b = d = 5, what is the area of this rectangle?
| 2 | |
| 14 | |
| 10 | |
| 24 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 2 x 5
a = 10