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AlekseyPX
3 years ago
11

I NEED SERIOUS ANSWERS WITHIN 15 MINUTES PLEASE, WILL MAKE BRAINLIEST

Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer: 1,4 is the answer

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1. Which equation represents a linear function?
KATRIN_1 [288]

Answer:

A, B, D are equations representing a linear function

Step-by-step explanation:

All linear functions have an equation like the following: y=mx+b, where m is the slope and b is an offset.

A. y=x-4, m=1 and b=-4

B. y=x+4, m=1 and b=4

D. y=x+7, m=1 and b=7

The third eq dont behave like a linear function since there is quadratic term on one side of the equation, this is not a linear function

5 0
4 years ago
Assuming the population variances are unknown and equal, you wish to test whether the Group 1 population mean is equal to the Gr
Fantom [35]

Answer:

n_1+n_2-2

Step-by-step explanation:

If we had 2 independent samples with population variances unknown and equal and we want to compare the population mean between the both groups, the test statistic will be:

t=\frac{x_1-x_2}{\sqrt{s_p^2(\frac{1}{n_1}+\frac{1}{n_2}) } }

Where s_p^2=\frac{(n_1-1)*s_1^2+(n_2-2)*s_2^2}{n_1+n_2-2}

So, the t-student has n_1+n_2-2 degrees of freedom

Where x_1 and x_2 are the means of the groups, n_1 and n_2 are the size of the samples and s_1^2 and s_2^2 are the sample variances.

7 0
3 years ago
What is the value of x when y=10?​
Margaret [11]

Answer:

x would be 1

Step-by-step explanation:

8 0
3 years ago
PLEASE ANSWER I WILL GIVE YOU BRAINIEST!!!!!!!!!!!
Vedmedyk [2.9K]

Answer:

A.  Both are correct

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
25 points plus brainliest if you get this right
Dmitry_Shevchenko [17]

Answer:

540

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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