| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.88 |
| Score | 0% | 58% |
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
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equal angle |
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right angle |
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equal length |
A trapezoid is a quadrilateral with one set of parallel sides.
Solve -9c - 4c = 7c + 7x - 5 for c in terms of x.
| \(\frac{3}{5}\)x - 1\(\frac{3}{5}\) | |
| -\(\frac{11}{16}\)x + \(\frac{5}{16}\) | |
| -x + \(\frac{1}{2}\) | |
| -1\(\frac{5}{6}\)x - \(\frac{1}{6}\) |
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.
-9c - 4x = 7c + 7x - 5
-9c = 7c + 7x - 5 + 4x
-9c - 7c = 7x - 5 + 4x
-16c = 11x - 5
c = \( \frac{11x - 5}{-16} \)
c = \( \frac{11x}{-16} \) + \( \frac{-5}{-16} \)
c = -\(\frac{11}{16}\)x + \(\frac{5}{16}\)
If the base of this triangle is 6 and the height is 2, what is the area?
| 91 | |
| 6 | |
| 42 | |
| 58\(\frac{1}{2}\) |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 6 x 2 = \( \frac{12}{2} \) = 6
The dimensions of this cube are height (h) = 4, length (l) = 9, and width (w) = 1. What is the surface area?
| 318 | |
| 18 | |
| 98 | |
| 254 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 9 x 1) + (2 x 1 x 4) + (2 x 9 x 4)
sa = (18) + (8) + (72)
sa = 98
Order the following types of angle from least number of degrees to most number of degrees.
acute, obtuse, right |
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acute, right, obtuse |
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right, obtuse, acute |
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right, acute, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.