| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.39 |
| Score | 0% | 68% |
Which of these numbers is a factor of 72?
| 45 | |
| 24 | |
| 54 | |
| 37 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.
What is \( \frac{35\sqrt{8}}{7\sqrt{2}} \)?
| 4 \( \sqrt{5} \) | |
| \(\frac{1}{4}\) \( \sqrt{5} \) | |
| \(\frac{1}{5}\) \( \sqrt{4} \) | |
| 5 \( \sqrt{4} \) |
To divide terms with radicals, divide the coefficients and radicands separately:
\( \frac{35\sqrt{8}}{7\sqrt{2}} \)
\( \frac{35}{7} \) \( \sqrt{\frac{8}{2}} \)
5 \( \sqrt{4} \)
What is the greatest common factor of 32 and 20?
| 10 | |
| 11 | |
| 20 | |
| 4 |
The factors of 32 are [1, 2, 4, 8, 16, 32] and the factors of 20 are [1, 2, 4, 5, 10, 20]. They share 3 factors [1, 2, 4] making 4 the greatest factor 32 and 20 have in common.
A factor is a positive __________ that divides evenly into a given number.
improper fraction |
|
fraction |
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integer |
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mixed number |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.
Which of the following statements about exponents is false?
b1 = 1 |
|
b0 = 1 |
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b1 = b |
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all of these are false |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).