| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
What is \( \frac{4\sqrt{6}}{2\sqrt{3}} \)?
| 2 \( \sqrt{\frac{1}{2}} \) | |
| 2 \( \sqrt{2} \) | |
| \(\frac{1}{2}\) \( \sqrt{\frac{1}{2}} \) | |
| \(\frac{1}{2}\) \( \sqrt{2} \) |
To divide terms with radicals, divide the coefficients and radicands separately:
\( \frac{4\sqrt{6}}{2\sqrt{3}} \)
\( \frac{4}{2} \) \( \sqrt{\frac{6}{3}} \)
2 \( \sqrt{2} \)
How many 2\(\frac{1}{2}\) gallon cans worth of fuel would you need to pour into an empty 25 gallon tank to fill it exactly halfway?
| 10 | |
| 9 | |
| 5 | |
| 6 |
To fill a 25 gallon tank exactly halfway you'll need 12\(\frac{1}{2}\) gallons of fuel. Each fuel can holds 2\(\frac{1}{2}\) gallons so:
cans = \( \frac{12\frac{1}{2} \text{ gallons}}{2\frac{1}{2} \text{ gallons}} \) = 5
Which of the following is not a prime number?
5 |
|
7 |
|
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.
If a car travels 405 miles in 9 hours, what is the average speed?
| 35 mph | |
| 30 mph | |
| 75 mph | |
| 45 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)Charlie loaned Frank $700 at an annual interest rate of 9%. If no payments are made, what is the interest owed on this loan at the end of the first year?
| $7 | |
| $18 | |
| $63 | |
| $72 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $700
i = 0.09 x $700
i = $63