Answer:
The distance of two complex numbers
= 9.055
Step-by-step explanation:
<u>Step(i):-</u>
Given that z₁ = 6-3i and z₂ = -3-4i
We know that 'z' represents a point on the argand plane with absicca 'x' and ordinate 'y'
Now given points are ( x₁ , y₁) = (6 ,-3) and (x₂, y₂) = (-3 , -4)
<u><em>Step(ii):-</em></u>
The distance of two points
z₁ z₂
=9.055
Answer:
"A half of a class and a half of a student got A on a test" this confuse me for a bit.... but i hope i got the right answer
Step-by-step explanation:
call number of students in the class is a
A half of a class and a half of a student got A on a test ->1/2 a +0.5 ?
1/2 a + 0.5 + 1 = 2/3 a
-> 1/2 a +1.5 = 2/3 a
-> 1.5 = 1/6a
-> a = 9
Answer: I and III
Step-by-step explanation:
We observe in the case provided that the researcher, who has no interest in the population to intervene, is going to carry out surveys to assess whether the neighborhood is a good place to live, obtaining the following conclusions:
i. The Minneapolis Resident Survey was an observational study.
ii. The Minneapolis Resident Survey was an experiment.
iii. The figure 50.1% is a descriptive statistic for the sample.
iv. The figure 50.1% is a statistical inference for the population.:By estimating the sample, obtained by a lower percentage of the total of the respondents, it is known that with a 95% confidence interval that the rating obtained from the respondents considering that the neighborhood is a good place to live was found between 0.44 and 0.50, taking this interval as a statistical inference for the population.
The correct answer is I and III, since in this study no interventions were made to the population and only one observation of a characteristic of the neighborhood was made and in III we know that the descriptive statistic only describes data and summarizes it, which is a of the ways to display the data from the descriptive survey.
4.17 is the answer to 50.00-45.83