| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
Simplify 6a x 2b.
| 12\( \frac{b}{a} \) | |
| 12a2b2 | |
| 12ab | |
| 12\( \frac{a}{b} \) |
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 2b = (6 x 2) (a x b) = 12ab
What is the circumference of a circle with a radius of 6?
| 12π | |
| 8π | |
| 28π | |
| 36π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 6)
c = 12π
Which types of triangles will always have at least two sides of equal length?
equilateral and isosceles |
|
equilateral, isosceles and right |
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isosceles and right |
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equilateral and right |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
What is the area of a circle with a radius of 4?
| 8π | |
| 64π | |
| 49π | |
| 16π |
The formula for area is πr2:
a = πr2
a = π(42)
a = 16π
Which of the following expressions contains exactly two terms?
quadratic |
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binomial |
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monomial |
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polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.