| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
A trapezoid is a quadrilateral with one set of __________ sides.
equal length |
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parallel |
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right angle |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
What is 7a4 - 7a4?
| 0 | |
| 49a4 | |
| 8 | |
| 0a4 |
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.
7a4 - 7a4 = 0a4
Simplify (3a)(9ab) - (3a2)(2b).
| 60a2b | |
| -21ab2 | |
| 21a2b | |
| 33ab2 |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
(3a)(9ab) - (3a2)(2b)
(3 x 9)(a x a x b) - (3 x 2)(a2 x b)
(27)(a1+1 x b) - (6)(a2b)
27a2b - 6a2b
21a2b
Breaking apart a quadratic expression into a pair of binomials is called:
deconstructing |
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squaring |
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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.
If a = c = 8, b = d = 3, what is the area of this rectangle?
| 24 | |
| 15 | |
| 32 | |
| 6 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 8 x 3
a = 24