| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.69 |
| Score | 0% | 74% |
What is 9a + 7a?
| a2 | |
| 16a | |
| 63a | |
| 2a2 |
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.
9a + 7a = 16a
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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the area of a parallelogram is base x height |
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opposite sides and adjacent angles are equal |
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).
The dimensions of this cube are height (h) = 4, length (l) = 6, and width (w) = 8. What is the volume?
| 252 | |
| 192 | |
| 405 | |
| 50 |
The volume of a cube is height x length x width:
v = h x l x w
v = 4 x 6 x 8
v = 192
Breaking apart a quadratic expression into a pair of binomials is called:
normalizing |
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factoring |
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squaring |
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deconstructing |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
What is 3a - 8a?
| -5a | |
| 11a2 | |
| 24a2 | |
| -5 |
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.
3a - 8a = -5a