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Alina [70]
4 years ago
7

Which of the following choices evaluates (-x)^2 when x=-1 Answers: 1)1 2)-2 3)-1

Mathematics
1 answer:
MissTica4 years ago
7 0
(-(-1))^2
(1)^2
1 x 1
=1

Answer: 1
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Itxutxitxikhxkyztidurdutzktxgxkh
5 0
3 years ago
A real-estate agent conducted an experiment to test the effect of selling a staged home vs. selling an empty home. To do so, the
Genrish500 [490]

The statement "Yes, all the conditions for Inference have been met" is correct.

<h3>What is a t-test?</h3>

A t-test is a hypothesis-testing technique for analyzing the means of one or two populations. A t-test can be used to see if a single group differs from a known value, if two groups differ from each other (an independent two-sample t-test), or if paired measurements show a significant difference.

We have:

Null hypothesis:H0: μ1 – μ2 = 0,

Alternative hypothesis: Ha: μ1 – μ2 < 0

As it is mentioned that the samples are drawn randomly and mentioned that no skewness is observed, this Indicates that the distribution is approximately normal

The total number of readings = 10

Which is not more than 10% of the Population size.

Thus, the statement "Yes, all the conditions for Inference have been met" is correct.

Learn more about the t-test here:

brainly.com/question/15870238

6 0
2 years ago
The world's population is expected to grow at a rate of 1.3% per year until at least the year 2020. In 1994 the total population
Marina CMI [18]
The solution to your problem is as follows:

Given: 
P₀ = 5,642×10^6 people, 
i = 1.3% = 0.013 per year, 
n = 2020 - 1994 = 26 years, 

We get: 
<span>
Pn = P₀ e^(i.n) </span>
. . .= 5,642×10^6×e^(0.013×26) 
<span>. . .= 7,911×10^6 people

Therefore, the </span>the world's predicted population in the year 2020 is <span>7,911×10^6 people.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!</span>
5 0
3 years ago
What happens to the value of the expression 150-j150−j150, minus, j as jjj decreases?
nikklg [1K]

Answer:

The value of the expression increases as j decreases

Step-by-step explanation:

Let f(j) = 150 - j150 - j150

f(j) = 150 - j300

As j decreases, the value of j300 decreases (i.e the farther j300 is from 150). Due to the wider gap between 150 and j300, the value of f(j) increases.

For example:

When j = 1, f(j) = 150 - (300*1) = -150

When j = 0.5, f(j) = 150 - (300*0.5) = 0

When j = 0. f(j) = 150 - (300*0) = 150

It is obvious from the analogy above that the expression 150-j150−j150 increases as j decreases

4 0
4 years ago
Amelia and her children went into a grocery store and she bought $10
S_A_V [24]
8 apples and 4 bananas as 8x =£8.00 and 4y=£2.00 and 8+4=12 and £8+£4=£10
8 0
2 years ago
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