| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.67 |
| Score | 0% | 73% |
What is (b5)4?
| b9 | |
| b-1 | |
| 4b5 | |
| b20 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(b5)4The __________ is the greatest factor that divides two integers.
greatest common multiple |
|
absolute value |
|
greatest common factor |
|
least common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.
Which of the following is not an integer?
-1 |
|
0 |
|
1 |
|
\({1 \over 2}\) |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
What is -9z7 + 3z7?
| -6z-14 | |
| -6z49 | |
| -6z7 | |
| -6z14 |
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:
-9z7 + 3z7
(-9 + 3)z7
-6z7
What is the greatest common factor of 28 and 16?
| 16 | |
| 10 | |
| 13 | |
| 4 |
The factors of 28 are [1, 2, 4, 7, 14, 28] and the factors of 16 are [1, 2, 4, 8, 16]. They share 3 factors [1, 2, 4] making 4 the greatest factor 28 and 16 have in common.