| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
| 2.4 | |
| 0.9 | |
| 2.0 | |
| 1 |
1
Latoya scored 80% on her final exam. If each question was worth 3 points and there were 210 possible points on the exam, how many questions did Latoya answer correctly?
| 59 | |
| 56 | |
| 66 | |
| 50 |
Latoya scored 80% on the test meaning she earned 80% of the possible points on the test. There were 210 possible points on the test so she earned 210 x 0.8 = 168 points. Each question is worth 3 points so she got \( \frac{168}{3} \) = 56 questions right.
What is 7y4 - 8y4?
| 15y-8 | |
| y-4 | |
| 15y16 | |
| -y4 |
To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so subtract the coefficients and retain the base and exponent:
7y4 - 8y4
(7 - 8)y4
-y4
What is the next number in this sequence: 1, 5, 13, 25, 41, __________ ?
| 70 | |
| 61 | |
| 52 | |
| 64 |
The equation for this sequence is:
an = an-1 + 4(n - 1)
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 4(6 - 1)
a6 = 41 + 4(5)
a6 = 61
The __________ is the greatest factor that divides two integers.
greatest common factor |
|
absolute value |
|
least common multiple |
|
greatest common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.