| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
Breaking apart a quadratic expression into a pair of binomials is called:
deconstructing |
|
factoring |
|
normalizing |
|
squaring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
Which of the following statements about a parallelogram is not true?
the area of a parallelogram is base x height |
|
opposite sides and adjacent angles are equal |
|
the perimeter of a parallelogram is the sum of the lengths of all sides |
|
a parallelogram is a quadrilateral |
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).
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Inside |
|
Last |
|
Odd |
|
First |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
A right angle measures:
90° |
|
360° |
|
180° |
|
45° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
Solve for c:
-c - 7 = \( \frac{c}{-4} \)
| -\(\frac{36}{43}\) | |
| -9\(\frac{1}{3}\) | |
| 2\(\frac{2}{5}\) | |
| -\(\frac{3}{4}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
-c - 7 = \( \frac{c}{-4} \)
-4 x (-c - 7) = c
(-4 x -c) + (-4 x -7) = c
4c + 28 = c
4c + 28 - c = 0
4c - c = -28
3c = -28
c = \( \frac{-28}{3} \)
c = -9\(\frac{1}{3}\)