| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.64 |
| Score | 0% | 73% |
What is 8x6 + 6x6?
| 14x36 | |
| 14x6 | |
| 2x-6 | |
| 14x-12 |
To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so add the coefficients and retain the base and exponent:
8x6 + 6x6
(8 + 6)x6
14x6
4! = ?
4 x 3 |
|
3 x 2 x 1 |
|
5 x 4 x 3 x 2 x 1 |
|
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.
A bread recipe calls for 2 cups of flour. If you only have 1\(\frac{3}{8}\) cups, how much more flour is needed?
| \(\frac{7}{8}\) cups | |
| 2\(\frac{5}{8}\) cups | |
| \(\frac{3}{4}\) cups | |
| \(\frac{5}{8}\) cups |
The amount of flour you need is (2 - 1\(\frac{3}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{16}{8} \) - \( \frac{11}{8} \)) cups
\( \frac{5}{8} \) cups
\(\frac{5}{8}\) cups
25 members of a bridal party need transported to a wedding reception but there are only 4 5-passenger taxis available to take them. How many will need to find other transportation?
| 5 | |
| 3 | |
| 9 | |
| 2 |
There are 4 5-passenger taxis available so that's 4 x 5 = 20 total seats. There are 25 people needing transportation leaving 25 - 20 = 5 who will have to find other transportation.
What is 7b3 x 3b2?
| 10b6 | |
| 21b5 | |
| 21b2 | |
| 21b6 |
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:
7b3 x 3b2
(7 x 3)b(3 + 2)
21b5