| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.32 |
| Score | 0% | 66% |
Which of the following statements about a parallelogram is not true?
the area of a parallelogram is base x height |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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opposite sides and adjacent angles are equal |
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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).
Solve -9b + 5b = -2b - 3z + 2 for b in terms of z.
| \(\frac{3}{5}\)z - \(\frac{3}{10}\) | |
| 1\(\frac{1}{7}\)z - \(\frac{2}{7}\) | |
| z - 1\(\frac{4}{5}\) | |
| -\(\frac{13}{14}\)z + \(\frac{4}{7}\) |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
-9b + 5z = -2b - 3z + 2
-9b = -2b - 3z + 2 - 5z
-9b + 2b = -3z + 2 - 5z
-7b = -8z + 2
b = \( \frac{-8z + 2}{-7} \)
b = \( \frac{-8z}{-7} \) + \( \frac{2}{-7} \)
b = 1\(\frac{1}{7}\)z - \(\frac{2}{7}\)
A coordinate grid is composed of which of the following?
x-axis |
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y-axis |
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all of these |
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origin |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
The dimensions of this cube are height (h) = 8, length (l) = 6, and width (w) = 1. What is the volume?
| 54 | |
| 120 | |
| 48 | |
| 270 |
The volume of a cube is height x length x width:
v = h x l x w
v = 8 x 6 x 1
v = 48
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
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parallel |
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equal length |
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right angle |
A trapezoid is a quadrilateral with one set of parallel sides.