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umka2103 [35]
3 years ago
15

If u = 1 + i and v = 1 – i, what is u + v? A.2 B.0 C.-2i D.-2 E.2i

Mathematics
2 answers:
Gnoma [55]3 years ago
7 0

Answer:

2

Step-by-step explanation:

Remark

Treat that i as though it were any letter used as variable. The fact that it represents the square root of minus 1 is not an issue here. If you have 5x -5x the result is 0.

Same thing with this question

u + v = 1 + i + 1 - i = 2 The two "i"s cancel and the two "1"s add. The answer is 2  

Scrat [10]3 years ago
3 0

Answer:

2

Step-by-step explanation:

u = 1+i

v = 1-i


add them together

1+i

1-i

------

2 +0


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An Airliner has a capacity for 300 passengers. If the company overbook a flight with 320 passengers, What is the probability tha
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Answer:

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Step-by-step explanation:

From the question we are told that

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Generally the mean is mathematically represented as

    \mu  =  n*  p

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Generally the standard deviation is  

    \sigma =  \sqrt{n *  p *  (1 -p ) }

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Applying Normal approximation of binomial distribution

Generally the probability that there will not be enough seats to accommodate all passengers is mathematically represented as

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Now applying  continuity correction we have

    P(X  >300 ) =  P(Z >  \frac{[300+0.5] - 307.2}{3.50} )    

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=>    P(X  >300 ) =  P(Z >  -1.914 )

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    P(Z >  -1.914 ) =  0.97219

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Step-by-step explanation:

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Keywords: linear equation, substitution method

Learn more about linear equations at:

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#LearnwithBrainly

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