| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.13 |
| Score | 0% | 63% |
What is \( \sqrt{\frac{81}{9}} \)?
| 2\(\frac{1}{4}\) | |
| \(\frac{2}{5}\) | |
| 3 | |
| 4\(\frac{1}{2}\) |
To take the square root of a fraction, break the fraction into two separate roots then calculate the square root of the numerator and denominator separately:
\( \sqrt{\frac{81}{9}} \)
\( \frac{\sqrt{81}}{\sqrt{9}} \)
\( \frac{\sqrt{9^2}}{\sqrt{3^2}} \)
\( \frac{9}{3} \)
3
Which of these numbers is a factor of 48?
| 6 | |
| 28 | |
| 32 | |
| 12 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48.
A tiger in a zoo has consumed 54 pounds of food in 9 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 84 pounds?
| 13 | |
| 10 | |
| 5 | |
| 14 |
If the tiger has consumed 54 pounds of food in 9 days that's \( \frac{54}{9} \) = 6 pounds of food per day. The tiger needs to consume 84 - 54 = 30 more pounds of food to reach 84 pounds total. At 6 pounds of food per day that's \( \frac{30}{6} \) = 5 more days.
Which of the following is not a prime number?
2 |
|
7 |
|
9 |
|
5 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
The __________ is the smallest positive integer that is a multiple of two or more integers.
greatest common factor |
|
absolute value |
|
least common factor |
|
least common multiple |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.