| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
If a = c = 1, b = d = 3, what is the area of this rectangle?
| 3 | |
| 24 | |
| 9 | |
| 20 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 1 x 3
a = 3
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
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midpoints |
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bisects |
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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.
Solve for a:
8a + 5 = \( \frac{a}{-6} \)
| -1\(\frac{7}{13}\) | |
| 1\(\frac{5}{7}\) | |
| -\(\frac{30}{49}\) | |
| 2\(\frac{1}{2}\) |
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 equal sign and the answer on the other.
8a + 5 = \( \frac{a}{-6} \)
-6 x (8a + 5) = a
(-6 x 8a) + (-6 x 5) = a
-48a - 30 = a
-48a - 30 - a = 0
-48a - a = 30
-49a = 30
a = \( \frac{30}{-49} \)
a = -\(\frac{30}{49}\)
A(n) __________ is two expressions separated by an equal sign.
equation |
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problem |
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formula |
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expression |
An equation is two expressions separated by an equal sign. The key to solving equations is to repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
Breaking apart a quadratic expression into a pair of binomials is called:
squaring |
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deconstructing |
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normalizing |
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factoring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.