| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.70 |
| Score | 0% | 54% |
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
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exponents |
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pairs |
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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.)
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
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bisects |
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trisects |
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intersects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
A(n) __________ is to a parallelogram as a square is to a rectangle.
quadrilateral |
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rhombus |
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triangle |
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trapezoid |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Solve -4c + 3c = 4c - 4y + 6 for c in terms of y.
| \(\frac{7}{8}\)y - \(\frac{3}{4}\) | |
| \(\frac{1}{5}\)y + 1\(\frac{1}{5}\) | |
| -\(\frac{2}{3}\)y - 1\(\frac{1}{3}\) | |
| -2\(\frac{1}{2}\)y - \(\frac{1}{4}\) |
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.
-4c + 3y = 4c - 4y + 6
-4c = 4c - 4y + 6 - 3y
-4c - 4c = -4y + 6 - 3y
-8c = -7y + 6
c = \( \frac{-7y + 6}{-8} \)
c = \( \frac{-7y}{-8} \) + \( \frac{6}{-8} \)
c = \(\frac{7}{8}\)y - \(\frac{3}{4}\)
For this diagram, the Pythagorean theorem states that b2 = ?
a2 - c2 |
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c - a |
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c2 - a2 |
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c2 + a2 |
The Pythagorean theorem defines the relationship between the side lengths of a right triangle. The length of the hypotenuse squared (c2) is equal to the sum of the two perpendicular sides squared (a2 + b2): c2 = a2 + b2 or, solved for c, \(c = \sqrt{a + b}\)