| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
The __________ is the smallest positive integer that is a multiple of two or more integers.
least common multiple |
|
greatest common factor |
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least common factor |
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absolute value |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
4! = ?
4 x 3 |
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3 x 2 x 1 |
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5 x 4 x 3 x 2 x 1 |
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4 x 3 x 2 x 1 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
What is 6b2 x b6?
| 6b-4 | |
| 6b6 | |
| 6b8 | |
| 7b6 |
To multiply terms with exponents, the base of both exponents must be the same. In this case they are so multiply the coefficients and add the exponents:
6b2 x b6
(6 x 1)b(2 + 6)
6b8
Diane scored 80% on her final exam. If each question was worth 3 points and there were 210 possible points on the exam, how many questions did Diane answer correctly?
| 67 | |
| 43 | |
| 46 | |
| 56 |
Diane scored 80% on the test meaning she earned 80% of the possible points on the test. There were 210 possible points on the test so she earned 210 x 0.8 = 168 points. Each question is worth 3 points so she got \( \frac{168}{3} \) = 56 questions right.
What is \( \frac{2}{9} \) x \( \frac{3}{6} \)?
| \(\frac{16}{35}\) | |
| 1 | |
| \(\frac{1}{9}\) | |
| \(\frac{3}{56}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{2}{9} \) x \( \frac{3}{6} \) = \( \frac{2 x 3}{9 x 6} \) = \( \frac{6}{54} \) = \(\frac{1}{9}\)