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3 years ago

Add the following complex numbers (5-3i)+(10+5i)

Mathematics

1 answer:

aniked [119]3 years ago

3 0

Answer: 15+2i

Step-by-step explanation:

(5-3i)+(10+5i)

Split the equation

5+10=15

-3i+5i=2i

15+2i

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Cuanto es 8x3cuarto ayudenme

tatyana61 [14]

Answer:

Step-by-step explanation:

8×3cuartos:648

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3 years ago

What is 85.23 - 2.675 =?

Anna007 [38]

Your answer is 85.555,hope this helped or 85.5 with - over it

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3 years ago

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Learning about graphs:<br> me : haha lines go bRRrR

Goshia [24]

Answer:

see explanation below

Step-by-step explanation:

1) 2011 sum

(6+8)100

14(100) = 1400 coins collected

2) 2015 difference

(6-4)100

2(100) = 200 coin difference

3) Henry is red. just look at the points where red is ABOVE blue

2011, 2014, 2015

4) you can take your answer from one and add it to the coins collected in 2010

1400 + (4+8)100

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1400 + 1200

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5) Chris is in blue. just look at the points where blue is ABOVE red

3 years

but it asks months

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2 years ago

3) 9i(3)+ 9i(2)+ 18i + 36

GalinKa [24]

Answer:
36+63i

explanation:

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3 years ago

An ectopic pregnancy is twice as likely to develop when the pregnant woman is a smoker as it iswhen she is a nonsmoker. If 32 pe

Dmitriy789 [7]

Answer:

48.48%

Step-by-step explanation:

Let's assume that there is a number N of women.

32% of these are smokers, then there are 0.32*N smokers

then 68% of these are non-smokers, then there are 0.68*N non-smokers.

Let's assume that the probability of having a ectopic pregnancy for a non-smoker is p (and the probability for a smoker will be 2*p)

Then the number of women with an ectopic pregnancy that are non-smokers is:

p*0.68*N

The number of women with an ectopic pregnancy that are smokers is:

2*p*0.32*N

Then the total number of women with an ectopic pregnancy will be:

p*0.68*N + 2*p*0.32*N

The percentage of women having an ectopic pregnancy that are smokers is equal to the quotient between the number of women with an ectopic pregnancy that are smokers and the total number of women with an ectopic pregnancy, all that times 100%.

The percentage is:

$P = \frac{2*p*0.32*N}{p*0.68*N + 2*p*0.32*N} *100\%$

Taking p and N as common factors, we get:

$P = \frac{2*p*0.32*N}{p*0.68*N + 2*p*0.32*N} *100\% = \frac{N*p}{N*p} \frac{2*0.32}{0.68 + 2*0.32} *100\%$

Then we get:

$\frac{2*0.32}{0.68 + 2*0.32} *100\% = 48.48\%$

8 0

3 years ago