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Natalka [10]
3 years ago
8

Simplify completely. (2 + 3i) + (-4+i)

Mathematics
2 answers:
Dmitrij [34]3 years ago
8 0

Answer:

-2+4i

Step-by-step explanation:

Aleksandr-060686 [28]3 years ago
7 0

Answer:

-2+4i

Step-by-step explanation:

Simplify by combining the real and imaginary parts of each expression.

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ASAPPPP<br> - 1/2 + (3/4 x 4/9) =
kumpel [21]

Answer:

Step-by-step explanation:

− 1 /2 + 3 /4 ( 4 /9 )

=−1 /2 + 3 /4 ( 4 /9 )

= −1 /2 + 1 /3

= −1 /6

(Decimal: -0.166667)

6 0
3 years ago
The sum of two #'s is 29. The sum of the smaller and 2 times the larger is 45. Find the #'s.
Solnce55 [7]
X= 13
y=16

Work:

x+y=29

x=29-y

x+2y=45

29-y+2y=45

y=45-29

y=16

x=29-16

x=13
3 0
3 years ago
Read 2 more answers
On a multiplication facts test, Samantha had to know the facts from 1-12. She earned 3 points for every fact she solved correctl
kobusy [5.1K]

Answer:

y=3x+10

Step-by-step explanation:

I dont think it is the right form but that Is an equation for it

6 0
3 years ago
Read 2 more answers
scores on the act college entrance exam follow a bell-shaped distribution with mean 18 and standard deviation 6. Wayne's standar
WITCHER [35]

Answer:

His actual score is 15

Step-by-step explanation:

Here, we are interested in calculating Wayne’s actual score on the ACT

when we say the scores have being standardized, it means the score was reported in terms of the z-score and not the initial raw scores.

Now, mathematically, for the scores to have a negative z-score, it means it is actually below the mean.

The formula for the z-score or standard score is given below;

z-score = (x - mean)/SD

where in this case, x = ? which is the score we are looking for , z-score = -0.5 , mean score = 18 and standard deviation of the scores = 6

So, substituting these values into the z-score equation, we have;

-0.5 = (x-18)/6

x-18 = 6(-0.5)

x -18 = -3

x = -3 + 18

x = 15

7 0
3 years ago
If 33% of the members of Sweetheart Union sign petitions to decertify the union, the National Labor Relations Board will call an
Elis [28]

Answer:

There is no need to call for election.

Step-by-Step Explanation

Surveys are based on probability or statistics. It serves as a standard tool for experimental research in marketing, social sciences and official data statistics.

Since 8 out of 40 members of the Sweetheart Union will sign the petition, the percentage of those who will sign the petition is calculated below:

\frac{8}{40}*100=20\%

Based on the sample survey, only 20 percent of the members will sign the petition. Since, in the sample, the number of those who will sign is less than 33%, the union should be told that there is no need for the National Labor Relations Board to call for the election.

5 0
3 years ago
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