| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.37 |
| Score | 0% | 67% |
If a = c = 7, b = d = 9, what is the area of this rectangle?
| 63 | |
| 8 | |
| 14 | |
| 4 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 7 x 9
a = 63
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
|
quadrilateral |
|
triangle |
|
trapezoid |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
What is 9a3 + 9a3?
| a36 | |
| 18 | |
| 81a6 | |
| 18a3 |
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.
9a3 + 9a3 = 18a3
Which of the following expressions contains exactly two terms?
binomial |
|
polynomial |
|
monomial |
|
quadratic |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
The endpoints of this line segment are at (-2, -1) and (2, 1). What is the slope of this line?
| 1\(\frac{1}{2}\) | |
| \(\frac{1}{2}\) | |
| -2\(\frac{1}{2}\) | |
| -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, -1) and (2, 1) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(1.0) - (-1.0)}{(2) - (-2)} \) = \( \frac{2}{4} \)