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3 years ago

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:

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:

Step-by-step explanation:

u = 1+i

v = 1-i

add them together

1+i

1-i

------

2 +0

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Answer:

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Step-by-step explanation:

From the question we are told that

The capacity of an Airliner is k = 300 passengers

The sample size n = 320 passengers

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Generally the mean is mathematically represented as

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Generally the standard deviation is

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=> $\sigma = \sqrt{320 * 0.96 * (1 -0.96 ) }$

=> $\sigma =3.50$

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Here $\frac{ X -\mu }{\sigma } =Z (The \ standardized \ value \ of \ X )$

=> $P(X >300 ) = P(Z > \frac{300 - 307.2}{3.50} )$

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

=> $P(X >300 ) = P(Z > \frac{[300.5] - 307.2}{3.50} )$

=> $P(X >300 ) = P(Z > -1.914 )$

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$P(Z > -1.914 ) = 0.97219$

$P(X >300 ) = 0.97219$

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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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