| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.68 |
| Score | 0% | 74% |
Which of the following expressions contains exactly two terms?
binomial |
|
quadratic |
|
polynomial |
|
monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
Simplify (2a)(5ab) - (4a2)(8b).
| -22a2b | |
| 22ab2 | |
| 42ab2 | |
| 84ab2 |
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)(5ab) - (4a2)(8b)
(2 x 5)(a x a x b) - (4 x 8)(a2 x b)
(10)(a1+1 x b) - (32)(a2b)
10a2b - 32a2b
-22a2b
For this diagram, the Pythagorean theorem states that b2 = ?
c2 + a2 |
|
a2 - c2 |
|
c2 - a2 |
|
c - a |
The Pythagorean theorem defines the relationship between the side lengths of a right triangle. The length of the hypotenuse squared (c2) is equal to the sum of the two perpendicular sides squared (a2 + b2): c2 = a2 + b2 or, solved for c, \(c = \sqrt{a + b}\)
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Last |
|
Odd |
|
Inside |
|
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.
If a = 5, b = 7, c = 9, and d = 1, what is the perimeter of this quadrilateral?
| 29 | |
| 21 | |
| 22 | |
| 20 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 5 + 7 + 9 + 1
p = 22