| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
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trapezoid |
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rhombus |
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quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Simplify (2a)(7ab) - (9a2)(6b).
| 135a2b | |
| 68ab2 | |
| -40a2b | |
| 68a2b |
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.
(2a)(7ab) - (9a2)(6b)
(2 x 7)(a x a x b) - (9 x 6)(a2 x b)
(14)(a1+1 x b) - (54)(a2b)
14a2b - 54a2b
-40a2b
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
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parallel |
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right angle |
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equal length |
A trapezoid is a quadrilateral with one set of parallel sides.
Breaking apart a quadratic expression into a pair of binomials is called:
normalizing |
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deconstructing |
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squaring |
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factoring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
Which of the following statements about math operations is incorrect?
you can multiply monomials that have different variables and different exponents |
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you can add monomials that have the same variable and the same exponent |
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you can subtract monomials that have the same variable and the same exponent |
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all of these statements are correct |
You can only add or subtract monomials that have the same variable and the same exponent. For example, 2a + 4a = 6a and 4a2 - a2 = 3a2 but 2a + 4b and 7a - 3b cannot be combined. However, you can multiply and divide monomials with unlike terms. For example, 2a x 6b = 12ab.