| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.97 |
| Score | 0% | 59% |
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.
Solve 9a - 7a = -a - 3z - 7 for a in terms of z.
| \(\frac{1}{2}\)z + 2\(\frac{1}{4}\) | |
| -3z - 1\(\frac{1}{2}\) | |
| -1\(\frac{3}{7}\)z + \(\frac{3}{7}\) | |
| \(\frac{2}{5}\)z - \(\frac{7}{10}\) |
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.
9a - 7z = -a - 3z - 7
9a = -a - 3z - 7 + 7z
9a + a = -3z - 7 + 7z
10a = 4z - 7
a = \( \frac{4z - 7}{10} \)
a = \( \frac{4z}{10} \) + \( \frac{-7}{10} \)
a = \(\frac{2}{5}\)z - \(\frac{7}{10}\)
Simplify (4a)(2ab) - (4a2)(2b).
| 0a2b | |
| 16a2b | |
| 36a2b | |
| 2b |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
(4a)(2ab) - (4a2)(2b)
(4 x 2)(a x a x b) - (4 x 2)(a2 x b)
(8)(a1+1 x b) - (8)(a2b)
8a2b - 8a2b
0a2b
On this circle, a line segment connecting point A to point D is called:
diameter |
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radius |
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circumference |
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chord |
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).
Which of the following expressions contains exactly two terms?
polynomial |
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binomial |
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quadratic |
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monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.