| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.84 |
| Score | 0% | 77% |
If a = 3, b = 7, c = 5, and d = 6, what is the perimeter of this quadrilateral?
| 30 | |
| 26 | |
| 13 | |
| 21 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 3 + 7 + 5 + 6
p = 21
Simplify (2a)(2ab) + (6a2)(5b).
| 26ab2 | |
| -26a2b | |
| 34a2b | |
| -26ab2 |
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)(2ab) + (6a2)(5b)
(2 x 2)(a x a x b) + (6 x 5)(a2 x b)
(4)(a1+1 x b) + (30)(a2b)
4a2b + 30a2b
34a2b
Which of the following expressions contains exactly two terms?
binomial |
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polynomial |
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quadratic |
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monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
When two lines intersect, adjacent angles are __________ (they add up to 180°) and angles across from either other are __________ (they're equal).
acute, obtuse |
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supplementary, vertical |
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vertical, supplementary |
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obtuse, acute |
Angles around a line add up to 180°. Angles around a point add up to 360°. When two lines intersect, adjacent angles are supplementary (they add up to 180°) and angles across from either other are vertical (they're equal).
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Inside |
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Last |
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Odd |
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First |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.