| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.88 |
| Score | 0% | 58% |
What is 7a5 - 4a5?
| a510 | |
| 3 | |
| 11a10 | |
| 3a5 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
7a5 - 4a5 = 3a5
Breaking apart a quadratic expression into a pair of binomials is called:
squaring |
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factoring |
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normalizing |
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deconstructing |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
Solve for b:
b + 9 > \( \frac{b}{-9} \)
| b > 4 | |
| b > \(\frac{3}{11}\) | |
| b > 1\(\frac{1}{2}\) | |
| b > -8\(\frac{1}{10}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the > sign and the answer on the other.
b + 9 > \( \frac{b}{-9} \)
-9 x (b + 9) > b
(-9 x b) + (-9 x 9) > b
-9b - 81 > b
-9b - 81 - b > 0
-9b - b > 81
-10b > 81
b > \( \frac{81}{-10} \)
b > -8\(\frac{1}{10}\)
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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intersects |
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trisects |
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.
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
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the area of a parallelogram is base x height |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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opposite sides and adjacent angles are equal |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).