| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Which of these numbers is a factor of 20?
| 11 | |
| 2 | |
| 3 | |
| 10 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 20 are 1, 2, 4, 5, 10, 20.
What is \( \frac{-1b^9}{2b^3} \)?
| -2b12 | |
| -\(\frac{1}{2}\)b6 | |
| -\(\frac{1}{2}\)b-6 | |
| -\(\frac{1}{2}\)b3 |
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:
\( \frac{-b^9}{2b^3} \)
\( \frac{-1}{2} \) b(9 - 3)
-\(\frac{1}{2}\)b6
16 members of a bridal party need transported to a wedding reception but there are only 4 3-passenger taxis available to take them. How many will need to find other transportation?
| 1 | |
| 2 | |
| 4 | |
| 3 |
There are 4 3-passenger taxis available so that's 4 x 3 = 12 total seats. There are 16 people needing transportation leaving 16 - 12 = 4 who will have to find other transportation.
| 0.6 | |
| 3.6 | |
| 1.8 | |
| 1 |
1
What is (b3)4?
| 3b4 | |
| b-1 | |
| 4b3 | |
| b12 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(b3)4