P(A U B) = P(A) + P(B) - P(A and B)
P(A | B) = P(A and B) / P(B)
Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
The total sum of interior angles of a quadilateral is 360°
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(a/b)(c/d)=(ac/bd)
Therefore:
(5/4).(2/5)=(5*2)/(4*5)=10/20=1/2
(3/8).(-1/2)=(3*(-1)) /(8*2)=-3/16
(2/5)(5/2)=(2*5)/(5*2)=10/10)=1
(1/2)(1/3)=1/6
(-1/4)(-2/3)=[(-1)*(-2)] / (4*3)=2/12=1/6
