<img src="https://tex.z-dn.net/?f=%2814%20-%203i%29%20-%20%2820%20%2B%202i%29" id="TexFormula1" title="(14 - 3i)

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USPshnik [31]

3 years ago

t="(14 - 3i) - (20 + 2i)" align="absmiddle" class="latex-formula">
I need help solving this problem.

Mathematics

1 answer:

alukav5142 [94]3 years ago

4 0

Answer:

-16-5i

Step-by-step explanation:

add real number together and imaginary numbers together

also, distribute the negative for the second parentesis

(14 -3i)-(20+2i)

distribute negative

14-3i-20-2i

add real and imaginary numbers

-16-5i

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3a + 2b = c<br><br> b = c - (3a - 2)<br> b = (c - 3a)/2<br> b = (3a - c)/2

Lina20 [59]

Answer:3a + 2b = c

2b = c - 3a

b = (c - 3a)/2

7 0

3 years ago

Find the rectangular coordinates of the point with the polar coordinates (3, 5pi/3)

snow_tiger [21]

(3, 5pi/3) = (3cos 5pi/3, 3sin 5pi/3) = (1.5, -2.6)

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3 years ago

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In the past, joe got paid $229,390 annually. Since switching to a new career he has been making 10% less. How much does Joe make

Serhud [2]

Answer:

The answer is $206,451

Step-by-step explanation

This scenario is asking to subtract 19 percent away from 229,390 .

Step one : Divide 229,390 by 10 ( take away the zero behind the 9 )

Step 2 : Subtract 22,939 from 229,390 since we know ten percent of 229,390 is 22,939 = 206451

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3 years ago

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AMERICAN AIRLINES HAS A POLICY OF BOOKING AS MANY AS 15 PEOPLE ON AN AIRPLANE THAT CAN SEAT ONLY 14. (PAST STUDIES HAVE REVEALED

Blizzard [7]

Using the binomial distribution, there is a 0.0874 = 8.74% probability that not enough seats will be available.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

For this problem, the values of the parameters are given by:

n = 15, p = 0.85.

The probability that not enough seats will be available is P(X = 15), as the only outcome in which not enough seats will be available is when all 15 people who bought the ticket show up, hence:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 15) = C_{15,15}.(0.85)^{15}.(0.15)^{0} = 0.0874$

0.0874 = 8.74% probability that not enough seats will be available.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0

1 year ago

A one day trip to new york, mary spent $6.25 for breakfast and 8.95 for lunch. She can spend no more than an average of $8.50. H

zysi [14]

Mary spent $10.30 on dinner to stay in budget.

Step-by-step explanation:

Amount spent on breakfast = $6.25

Amount spent on lunch = $8.95

Amount spent on dinner = x

Average = $8.50

Average = $\frac{Sum\ of\ values}{No.\ of\ values}$

$8.50 = \frac{6.25+8.95+x}{3}\\8.50=\frac{15.20+x}{3}$

Multiplying both sides by 3

$8.50*3=\frac{15.20+x}{3}*3\\25.50=15.20+x\\25.50-15.20=x\\x=10.30$

Mary spent $10.30 on dinner to stay in budget.

Keywords: Average, addition

Learn more about addition at:

#LearnwithBrainly

7 0

4 years ago