1.Given two events X and Y; event X has the probability 5/6; If event X happens, the probability of event Y is 2/5; If event X does not happen, then the probability of event Y is ¼. Find the following probabilities. a) P(not X) b) P(Y / not X) c) P(not Y / X d) P(X and Y)

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answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°