Answer:
1
Step-by-step explanation:
If A and B are mutually exclusive and A is certain to happen, then B is certain to never happen, so P(B) = 0. The probability of either of two mutually exclusive events is the sum of their individual probabilities:
P(A or B) = P(A) +P(B) = 1 + 0
P(A or B) = 1
Answer:
8×ED=3×15
ED=45/8
the radius is the half of the diameter
so its 45/16
Sum of interior angles of a triangle is 180
90+51.1=141.1
180-141.1=38.9