| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
15 members of a bridal party need transported to a wedding reception but there are only 2 5-passenger taxis available to take them. How many will need to find other transportation?
| 8 | |
| 4 | |
| 5 | |
| 9 |
There are 2 5-passenger taxis available so that's 2 x 5 = 10 total seats. There are 15 people needing transportation leaving 15 - 10 = 5 who will have to find other transportation.
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
PEDMAS |
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associative |
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distributive |
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commutative |
The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.
A triathlon course includes a 300m swim, a 30.6km bike ride, and a 14.9km run. What is the total length of the race course?
| 45.8km | |
| 64.5km | |
| 67.1km | |
| 40.9km |
To add these distances, they must share the same unit so first you need to first convert the swim distance from meters (m) to kilometers (km) before adding it to the bike and run distances which are already in km. To convert 300 meters to kilometers, divide the distance by 1000 to get 0.3km then add the remaining distances:
total distance = swim + bike + run
total distance = 0.3km + 30.6km + 14.9km
total distance = 45.8km
What is \( \frac{18\sqrt{9}}{9\sqrt{3}} \)?
| 3 \( \sqrt{2} \) | |
| \(\frac{1}{2}\) \( \sqrt{\frac{1}{3}} \) | |
| 2 \( \sqrt{3} \) | |
| \(\frac{1}{3}\) \( \sqrt{2} \) |
To divide terms with radicals, divide the coefficients and radicands separately:
\( \frac{18\sqrt{9}}{9\sqrt{3}} \)
\( \frac{18}{9} \) \( \sqrt{\frac{9}{3}} \)
2 \( \sqrt{3} \)
Which of the following statements about exponents is false?
all of these are false |
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b0 = 1 |
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b1 = 1 |
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b1 = b |
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).