| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.52 |
| Score | 0% | 50% |
A trapezoid is a quadrilateral with one set of __________ sides.
equal length |
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parallel |
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right angle |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
On this circle, line segment CD is the:
radius |
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chord |
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circumference |
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diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Solve 6a + a = 4a - 9x - 2 for a in terms of x.
| -\(\frac{9}{17}\)x - \(\frac{2}{17}\) | |
| \(\frac{7}{11}\)x + \(\frac{3}{11}\) | |
| \(\frac{2}{9}\)x - 1 | |
| -5x - 1 |
To solve this equation, isolate the variable for which you are solving (a) on one side of the equation and put everything else on the other side.
6a + x = 4a - 9x - 2
6a = 4a - 9x - 2 - x
6a - 4a = -9x - 2 - x
2a = -10x - 2
a = \( \frac{-10x - 2}{2} \)
a = \( \frac{-10x}{2} \) + \( \frac{-2}{2} \)
a = -5x - 1
The dimensions of this cube are height (h) = 5, length (l) = 1, and width (w) = 8. What is the surface area?
| 54 | |
| 78 | |
| 118 | |
| 106 |
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 1 x 8) + (2 x 8 x 5) + (2 x 1 x 5)
sa = (16) + (80) + (10)
sa = 106
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
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rhombus |
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trapezoid |
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quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.