| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.65 |
| Score | 0% | 73% |
4! = ?
4 x 3 |
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5 x 4 x 3 x 2 x 1 |
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3 x 2 x 1 |
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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 factor is a positive __________ that divides evenly into a given number.
improper fraction |
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fraction |
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integer |
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mixed number |
A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.
Convert 50,000 to scientific notation.
| 5.0 x 105 | |
| 50.0 x 103 | |
| 5.0 x 103 | |
| 5.0 x 104 |
A number in scientific notation has the format 0.000 x 10exponent. To convert to scientific notation, move the decimal point to the right or the left until the number is a decimal between 1 and 10. The exponent of the 10 is the number of places you moved the decimal point and is positive if you moved the decimal point to the left and negative if you moved it to the right:
50,000 in scientific notation is 5.0 x 104
If a car travels 50 miles in 2 hours, what is the average speed?
| 60 mph | |
| 50 mph | |
| 25 mph | |
| 55 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)
| 1.8 | |
| 1 | |
| 2.7 | |
| 1.0 |
1