| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.89 |
| Score | 0% | 78% |
Simplify (8a)(6ab) - (5a2)(8b).
| 88ab2 | |
| 182a2b | |
| 88a2b | |
| 8a2b |
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.
(8a)(6ab) - (5a2)(8b)
(8 x 6)(a x a x b) - (5 x 8)(a2 x b)
(48)(a1+1 x b) - (40)(a2b)
48a2b - 40a2b
8a2b
Simplify 6a x 4b.
| 24ab | |
| 10ab | |
| 24\( \frac{b}{a} \) | |
| 24a2b2 |
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.
6a x 4b = (6 x 4) (a x b) = 24ab
A coordinate grid is composed of which of the following?
y-axis |
|
origin |
|
x-axis |
|
all of these |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
If angle a = 33° and angle b = 24° what is the length of angle c?
| 49° | |
| 119° | |
| 122° | |
| 123° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 33° - 24° = 123°
Which of the following expressions contains exactly two terms?
quadratic |
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monomial |
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polynomial |
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binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.