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kicyunya [14]
3 years ago
12

The product of (3 2i) and a complex number is (17 7i) What is the complex number.

Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0

(I'll assume that the blank spaces are PLUS signs ( + ),
as they usually are on Brainly.)

The mystery complex number is  (5 - i) .

     (3 + 2i) x (5 - i)  =  (17 + 7i)

FOIL it out and you'll see it.

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Anarel [89]

Answer:

Step-by-step explanation:

360

4 0
2 years ago
1/4 (8s + 16) help please
Tresset [83]

Answer:

2s + 4

Step-by-step explanation:

use the distributive property:

1/4 (8z + 16)

2s + 4

Done!

8 0
2 years ago
Assume the random variable X is normally distributed with meanmu equals 50μ=50and standard deviationsigma equals 7σ=7.Compute th
nekit [7.7K]

Answer:

P(35

And we can find this probability with the following difference and using the normal standard table or excel we have:

P(-2.143

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

X \sim N(50,7)  

Where \mu=50 and \sigma=7

We are interested on this probability

P(35

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(35

And we can find this probability with the following difference and using the normal standard table or excel we have:

P(-2.143

6 0
3 years ago
Ill mark brainlist plss help
kari74 [83]
To answer your question, the answer would be 8
7 0
2 years ago
What is 7 1/7 - 3 5/7
Maru [420]

Answer:

Step-by-step explanation:

7 1/7- 3 5/7= 3 3/7

3 3/7 can also be 3.42 and 24/7

7 0
3 years ago
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