Answer:
Step-by-step explanation:
Slope m = 
=
rational irrational irrational
There are 4 choose 3 ways to hold 3 kings and 4 possible queens to make up the fourth card of the hand out of a total of 54 choose 4 possible four-card hands, which gives us the following expression for the probability of being dealt 3 kings and a queen out of 4 cards: Or roughly 1 in every 16920 four card hands.
1 . 5/6 + 2/3 = 5/6 + 4/6 = 9/6
2. D is correct
Hope it helps .....
The sine rule will help you here.
On a unit circle, sin(Θ) would be the y-coordinate of point P (ie., 20). But we're not on the unit circle, so we'll have to divide 20 by the length of P (from the origin). The length of P = √(15²+20²) = 25.
So sin(Θ) = 20/25 = 0.8
