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ycow [4]
2 years ago
14

Subtract. (2 + 5i) – (4 – 2i)

Mathematics
2 answers:
jeka57 [31]2 years ago
5 0

Answer:

7i - 2

Step-by-step explanation:

(2 + 5i) - (4 - 2i)

2 + 5i - 4 + 2i

2 - 4 + 7i

7i + 2 - 4

7i - 2

Assoli18 [71]2 years ago
3 0

Answer:

3i-2

Step-by-step explanation:

I am not sure it could also be, well I don't know.

Hopefully its correct, sorry if it not.

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word phrase that represents the following expression 1 4 +2. vertical expression to represent the following 85 less than A know
sergij07 [2.7K]
Fourteen divided by two.

A - 85
7 0
3 years ago
Estimates show that there are 1.4*10^8 pet fish and 9.4*10^6 pet reptiles in the United States.
Readme [11.4K]
\bf \stackrel{fish}{1.4\times 10^8}~~+~~\stackrel{reptiles}{9.4\times 10^6}
\\\\\\
\stackrel{fish}{140000000}~~+~~\stackrel{reptiles}{9400000}\implies 
\begin{array}{rrrrllll}
140000000\\
+9400000\\
\text{\textemdash\textemdash\textemdash\textemdash\textemdash}\\
149400000
\end{array}\implies 1.494\times 10^8
5 0
3 years ago
Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. Your dat
Free_Kalibri [48]

Answer:

Probability of the day to be a snow day is 0.34

Step-by-step explanation:

We have the data,

Out of 21 which had less than 3 inches of snow, 5 were snow days.

Out of 8 days which had more than 3 inches of snow, 6 were snow days.

So, we get,

Total number of days = 21 + 8 = 29

Total number of snow days = 5 + 6 = 11

Thus, the probability that the day will be a snow day is \frac{11}{29} i.e. 0.34

Hence, the probability of the day to be a snow day is 0.34.

5 0
3 years ago
What guides a researcher when deciding between using either linear, logistic, or Cox proportional hazards regression as an analy
castortr0y [4]

Answer:

The outcome variable type (continuous, binary, or time -to- event)

Explanation:

The outcome variable type is the type of variables involved in a research. The researcher would put the type of variable involved in his research into consideration in deciding what regression model to apply in his research. For example, if the type of variable in his research are continuous variables(continuous variables are variables that may be any value within a range and may be infinite), he would use linear regression

4 0
3 years ago
Kaleem wanted to draw a triangle where the sides measured 5 cm, 8 cm, and 7 cm. How many unique triangles could Khaleem draw tha
Murrr4er [49]

Answer:

1

Step-by-step explanation:

bcuz it is so small,there is only space for one

5 0
3 years ago
Read 2 more answers
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