Answer:
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes. Mathematically, this is
In this problem, we have that:
Desired outcomes:
There are 52 cards, of which 13 are diamonds.
We want non diamond cards, so 
Total outcomes:
Deck of 52 cards, so 
Probability
810
all you need to do is plug in 12 for a and 7 for p. the you solve it.
8*12=96
7*4=28
96+28+11=135
6(135)=810
Answer:
A
Step-by-step explanation:
Sine we can figure out side XY by using Pythagorean Theorem (A^2+B^2=C^2) and find that XY= 5, We can use Soh Cah Toa (The ways I remember to use value charts) and we know that Cosine uses Adjacent over Hypotenuse in which therefore the answer would be 5/13
