| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
Which of the following is not a prime number?
2 |
|
5 |
|
7 |
|
9 |
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.
What is \( \frac{-8x^8}{1x^4} \)?
| -8x12 | |
| -8x4 | |
| -\(\frac{1}{8}\)x4 | |
| -\(\frac{1}{8}\)x-4 |
To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:
\( \frac{-8x^8}{x^4} \)
\( \frac{-8}{1} \) x(8 - 4)
-8x4
Which of the following is not an integer?
0 |
|
\({1 \over 2}\) |
|
-1 |
|
1 |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
A bread recipe calls for 2\(\frac{3}{8}\) cups of flour. If you only have 1\(\frac{3}{8}\) cups, how much more flour is needed?
| 1 cups | |
| 2\(\frac{7}{8}\) cups | |
| 3\(\frac{1}{4}\) cups | |
| 1\(\frac{1}{2}\) cups |
The amount of flour you need is (2\(\frac{3}{8}\) - 1\(\frac{3}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{19}{8} \) - \( \frac{11}{8} \)) cups
\( \frac{8}{8} \) cups
1 cups
A tiger in a zoo has consumed 22 pounds of food in 2 days. If the tiger continues to eat at the same rate, in how many more days will its total food consumtion be 99 pounds?
| 2 | |
| 3 | |
| 7 | |
| 77 |
If the tiger has consumed 22 pounds of food in 2 days that's \( \frac{22}{2} \) = 11 pounds of food per day. The tiger needs to consume 99 - 22 = 77 more pounds of food to reach 99 pounds total. At 11 pounds of food per day that's \( \frac{77}{11} \) = 7 more days.