| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.01 |
| Score | 0% | 60% |
Which of the following expressions contains exactly two terms?
quadratic |
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monomial |
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binomial |
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polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
Solve 8b - 5b = 5b + 6x + 6 for b in terms of x.
| 3\(\frac{2}{3}\)x + 2 | |
| 6x - 1 | |
| -\(\frac{1}{2}\)x + \(\frac{5}{6}\) | |
| \(\frac{1}{10}\)x + \(\frac{4}{5}\) |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
8b - 5x = 5b + 6x + 6
8b = 5b + 6x + 6 + 5x
8b - 5b = 6x + 6 + 5x
3b = 11x + 6
b = \( \frac{11x + 6}{3} \)
b = \( \frac{11x}{3} \) + \( \frac{6}{3} \)
b = 3\(\frac{2}{3}\)x + 2
Simplify (6a)(6ab) - (4a2)(3b).
| 84a2b | |
| 48a2b | |
| 84ab2 | |
| 24a2b |
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)(6ab) - (4a2)(3b)
(6 x 6)(a x a x b) - (4 x 3)(a2 x b)
(36)(a1+1 x b) - (12)(a2b)
36a2b - 12a2b
24a2b
For this diagram, the Pythagorean theorem states that b2 = ?
c2 + a2 |
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c - a |
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c2 - a2 |
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a2 - c2 |
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, \(c = \sqrt{a + b}\)
What is 3a4 - 3a4?
| 8 | |
| 9a8 | |
| 0a4 | |
| 6 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
3a4 - 3a4 = 0a4