| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.38 |
| Score | 0% | 68% |
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
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right angle |
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equal length |
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parallel |
A trapezoid is a quadrilateral with one set of parallel sides.
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
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pairs |
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exponents |
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addition |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve -7b - 9b = 8b - 3z - 4 for b in terms of z.
| -\(\frac{2}{5}\)z + \(\frac{4}{15}\) | |
| -1\(\frac{5}{6}\)z + \(\frac{5}{6}\) | |
| -1\(\frac{2}{5}\)z - 1\(\frac{3}{5}\) | |
| z - 8 |
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.
-7b - 9z = 8b - 3z - 4
-7b = 8b - 3z - 4 + 9z
-7b - 8b = -3z - 4 + 9z
-15b = 6z - 4
b = \( \frac{6z - 4}{-15} \)
b = \( \frac{6z}{-15} \) + \( \frac{-4}{-15} \)
b = -\(\frac{2}{5}\)z + \(\frac{4}{15}\)
A right angle measures:
90° |
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180° |
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360° |
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45° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
Which types of triangles will always have at least two sides of equal length?
equilateral and right |
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equilateral, isosceles and right |
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equilateral and isosceles |
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isosceles and right |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.