| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.04 |
| Score | 0% | 61% |
Solve 5c - 7c = 4c - z - 7 for c in terms of z.
| -\(\frac{3}{14}\)z + \(\frac{9}{14}\) | |
| 6z - 7 | |
| -\(\frac{1}{12}\)z + \(\frac{1}{12}\) | |
| 2z - \(\frac{2}{3}\) |
To solve this equation, isolate the variable for which you are solving (c) on one side of the equation and put everything else on the other side.
5c - 7z = 4c - z - 7
5c = 4c - z - 7 + 7z
5c - 4c = -z - 7 + 7z
c = 6z - 7
The endpoints of this line segment are at (-2, 9) and (2, -3). What is the slope of this line?
| 1 | |
| -3 | |
| 3 | |
| -\(\frac{1}{2}\) |
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, 9) and (2, -3) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-3.0) - (9.0)}{(2) - (-2)} \) = \( \frac{-12}{4} \)If the base of this triangle is 1 and the height is 3, what is the area?
| 42 | |
| 36 | |
| 1\(\frac{1}{2}\) | |
| 18 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 1 x 3 = \( \frac{3}{2} \) = 1\(\frac{1}{2}\)
If side x = 10cm, side y = 5cm, and side z = 5cm what is the perimeter of this triangle?
| 34cm | |
| 20cm | |
| 21cm | |
| 36cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 10cm + 5cm + 5cm = 20cm
Which of the following expressions contains exactly two terms?
monomial |
|
polynomial |
|
quadratic |
|
binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.