| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.84 |
| Score | 0% | 57% |
| 7.2 | |
| 4.5 | |
| 1 | |
| 0.7 |
1
Which of the following is not a prime number?
7 |
|
5 |
|
9 |
|
2 |
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.
Which of the following statements about exponents is false?
b1 = 1 |
|
b0 = 1 |
|
b1 = b |
|
all of these are false |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).
Monica scored 93% on her final exam. If each question was worth 3 points and there were 90 possible points on the exam, how many questions did Monica answer correctly?
| 42 | |
| 29 | |
| 21 | |
| 28 |
Monica scored 93% on the test meaning she earned 93% of the possible points on the test. There were 90 possible points on the test so she earned 90 x 0.93 = 84 points. Each question is worth 3 points so she got \( \frac{84}{3} \) = 28 questions right.
A bread recipe calls for 2\(\frac{5}{8}\) cups of flour. If you only have \(\frac{1}{2}\) cup, how much more flour is needed?
| 2\(\frac{1}{8}\) cups | |
| 1\(\frac{5}{8}\) cups | |
| 2\(\frac{1}{2}\) cups | |
| 1 cups |
The amount of flour you need is (2\(\frac{5}{8}\) - \(\frac{1}{2}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{21}{8} \) - \( \frac{4}{8} \)) cups
\( \frac{17}{8} \) cups
2\(\frac{1}{8}\) cups