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djverab [1.8K]
3 years ago
15

Simplify the given expression below: (4+2i)-(1–7i)

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0

Answer:

3 + 9i

Step-by-step explanation:

(4 + 2i) - (1 - 7i)

distribute the (-)

(4 + 2i) - 1 + 7i

combine like terms

3 + 9i

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Lorico [155]

Answer:

x^2 + 7x + 12

Step-by-step explanation:

This is a product of two binomials.  There's a formula:  

(a + b)(c + d) = ac + ad + bc + bd.

Therefore, (x + 3)(x + 4)​ = x^2 + 3x + 4x + 12  =  x^2 + 7x + 12

6 0
2 years ago
Mathew decides to run his first 50K (km) Ultra-Marathon. If 0.62 miles = 1 km, how many miles is Mathew going to run? * (please
kirza4 [7]

Answer:

31 miles

Step-by-step explanation:

If you multiply 0.62 by 50 you will get 31.

Please keep in mind that I am human and make mistakes. This answer could be wrong but this is my opinion on what the answer is.

4 0
2 years ago
Read 2 more answers
What are the values of x and y if this equation is true? 22(x+yi)+(28+4i)+72-62i
77julia77 [94]

Answer: x=2 and y=-3

Step-by-step explanation: you’re welcome

4 0
2 years ago
Please show your work please
Nadusha1986 [10]
The correct answer is 4. 
5 0
3 years ago
Which is an outlier out of 45,47,71,50,49 and 52
Elis [28]

The outlier is 71.

An outlier in a set of data is the one that is significantly lower or higher than the average of the totals. Whichever number skews the average is the outlier.

In this case, it's 71.

:)

6 0
3 years ago
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