Answer:
150
Step-by-step explanation:
The number of possible combinations is given by
... C(18, 3) = 18!/(3!(18-3)!) = 18·17·16/(3·2·1) = 816 . . . . possible combinations
_____
There are 18 ways to choose the first one; 17 ways to choose the second one, and 16 ways to choose the 3rd one. The same 3 students can be chosen in any of 3! = 6 different orders, so the product 18·17·16 must be divided by 6 to get the number of possible combinations in which order doesn't matter.
Answer:
1 . given
2. given
3. transitive properties of congruence ...
4 .AAS
There are exactly 360° in a circle, so the angle measure would be 3/360 * 360 = 3°.
Answer:
proportional/equal
Step-by-step explanation:
doesnt need
