| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Simplify \( \sqrt{75} \)
| 8\( \sqrt{6} \) | |
| 5\( \sqrt{3} \) | |
| 4\( \sqrt{6} \) | |
| 2\( \sqrt{6} \) |
To simplify a radical, factor out the perfect squares:
\( \sqrt{75} \)
\( \sqrt{25 \times 3} \)
\( \sqrt{5^2 \times 3} \)
5\( \sqrt{3} \)
How many 16-passenger vans will it take to drive all 52 members of the football team to an away game?
| 4 vans | |
| 3 vans | |
| 7 vans | |
| 6 vans |
Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:
vans = \( \frac{52}{16} \) = 3\(\frac{1}{4}\)
So, it will take 3 full vans and one partially full van to transport the entire team making a total of 4 vans.
A bread recipe calls for 3\(\frac{3}{8}\) cups of flour. If you only have \(\frac{5}{8}\) cup, how much more flour is needed?
| 2\(\frac{3}{4}\) cups | |
| 2\(\frac{1}{4}\) cups | |
| 2\(\frac{1}{8}\) cups | |
| 2\(\frac{5}{8}\) cups |
The amount of flour you need is (3\(\frac{3}{8}\) - \(\frac{5}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{27}{8} \) - \( \frac{5}{8} \)) cups
\( \frac{22}{8} \) cups
2\(\frac{3}{4}\) cups
What is \( \frac{7a^5}{6a^3} \)?
| 1\(\frac{1}{6}\)a15 | |
| \(\frac{6}{7}\)a8 | |
| \(\frac{6}{7}\)a-2 | |
| 1\(\frac{1}{6}\)a2 |
To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:
\( \frac{7a^5}{6a^3} \)
\( \frac{7}{6} \) a(5 - 3)
1\(\frac{1}{6}\)a2
Frank loaned Betty $300 at an annual interest rate of 6%. If no payments are made, what is the total amount owed at the end of the first year?
| $309 | |
| $318 | |
| $312 | |
| $327 |
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 $300
i = 0.06 x $300
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $300 + $18