| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
Simplify (6a)(2ab) + (2a2)(8b).
| 28a2b | |
| -4ab2 | |
| 80ab2 | |
| 4a2b |
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)(2ab) + (2a2)(8b)
(6 x 2)(a x a x b) + (2 x 8)(a2 x b)
(12)(a1+1 x b) + (16)(a2b)
12a2b + 16a2b
28a2b
A coordinate grid is composed of which of the following?
all of these |
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y-axis |
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x-axis |
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origin |
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.
Which of the following expressions contains exactly two terms?
polynomial |
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monomial |
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quadratic |
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binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
Solve for c:
2c + 2 > 8 + 7c
| c > -\(\frac{2}{3}\) | |
| c > \(\frac{1}{2}\) | |
| c > -1\(\frac{1}{5}\) | |
| c > 4 |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the > sign and the answer on the other.
2c + 2 > 8 + 7c
2c > 8 + 7c - 2
2c - 7c > 8 - 2
-5c > 6
c > \( \frac{6}{-5} \)
c > -1\(\frac{1}{5}\)
On this circle, line segment AB is the:
radius |
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chord |
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diameter |
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circumference |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).