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pishuonlain [190]
3 years ago
7

Find the solution of the system of equations. -x+3y=9 -x-y=-3

Mathematics
1 answer:
Inessa [10]3 years ago
4 0

Step-by-step explanation:

use the steps of simultaneous

elimination steps

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Step-by-step explanation:

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If AA and BB are two disjoint events with P(A)=0.15P(A)=0.15 and P(B)=0.75P(B)=0.75, find the following probabilities:
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Answer:

a 0

b) 0.9

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d) 0.25

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Step-by-step explanation:

a)

As A and B are two disjoints events, then P(A and B) is

P(A and B)=0

b)

As A and B are two disjoints events, then P(A or B) is

P(A or B)=P(A)+P(B)

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c)

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d)

P(not B)=1-P(B)

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e)

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f)

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3 years ago
What are the solution(s) to the quadratic equation 50 – x2 = 0?
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Answer:

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Step-by-step explanation:

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