hardwick744

31.08.2021 • 

Mathematics

1.74. A student is known to arrive late for a class 40% of the time. If the class meets five times each week find: (a) the probability the student is late for at least three classes in a given week, and (6) the probability the student will not ber late at all during a given weck. 1.7-5. An airline in a small city has five departures each day. It is known that any given flight has a probability of 0.3 of departing late. For any given day find the probabilities that: (a) no flights depart late, (b) all flights depart late, and (c) three or more depart on time.

Ответ:

AshIeigh

27.07.2021

Mathematics

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The intercepted arc is twice the size of the inscribed angle. For instance, here we have the inscribed angle with 50° so x(intercepted arc) = 2*50 = 100°

The other example is the intercepted arc given and inscribed angle needed. So divide 40° by 2 we will get 20°. So y = 20°

x = 100°

y = 20°

Hope it helps :)

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