| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.47 |
| Score | 0% | 69% |
Breaking apart a quadratic expression into a pair of binomials is called:
factoring |
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deconstructing |
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normalizing |
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squaring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
Solve for a:
-9a - 3 > -4 - a
| a > 1\(\frac{1}{3}\) | |
| a > \(\frac{1}{8}\) | |
| a > 3 | |
| a > -3\(\frac{1}{2}\) |
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 > sign and the answer on the other.
-9a - 3 > -4 - a
-9a > -4 - a + 3
-9a + a > -4 + 3
-8a > -1
a > \( \frac{-1}{-8} \)
a > \(\frac{1}{8}\)
What is the circumference of a circle with a diameter of 10?
| 10π | |
| 34π | |
| 22π | |
| 11π |
The formula for circumference is circle diameter x π:
c = πd
c = 10π
What is 8a - 9a?
| 17a2 | |
| -1a | |
| -1 | |
| a2 |
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.
8a - 9a = -1a
A trapezoid is a quadrilateral with one set of __________ sides.
right angle |
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equal angle |
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equal length |
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parallel |
A trapezoid is a quadrilateral with one set of parallel sides.