3 years ago

- 3x + 5y = -2 2x - 2y = 1 Solve by elem inaction

1 answer:

Lyrx [107]3 years ago

4 0

Answer:

x=1/4 , y=-1/4. You can confirm this by substituting the numbers in.

Step-by-step explanation:

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Stels [109]

Answer:

a) 0.1535

b) 0.4866

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Step-by-step explanation:

The probability that the next call come within the next t minutes is:

According to this model,

a) the probability that a call in comes within 1/2 minutes is $p(t) = 1 -e ^{- (1/2)/3}$ =0.1535

b) the probability that a call in comes within 2 minutes is $p(t) = 1 -e ^{-2/3}$ =0.4866

c) the probability that a call in comes within 5 minutes is $p(t) = 1 -e ^{-5/3}$ =0.8111

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3 years ago