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Ksju [112]
3 years ago
9

Help!! I will mark Brainliest!! Please show work! :) Thank You.

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

Answer:

The center is (20, 0.05)   radius = 9

Step-by-step explanation:

The center is (20, 0.05)   radius = 9

from the general form of the equation:

(x - h)^2 + (y - k)^2 = r^2

we see that  r^2 = 81

so r = 9

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In a T-test, if your n=459, your DF is:<br><br> A. 459<br> B. 460<br> C. 458<br> D. A&amp;C
Stels [109]

Answer:

DF = 458

Step-by-step explanation:

In statistics, T-test have an extensive application. T-tests are used in hypothesis testing or inference about the population mean when the population standard deviation is not known. Nevertheless, they are used in making inference in paired samples or dependent samples t-test as well as independent samples.

The degrees of freedom, DF, is a characteristic of the student's t distribution which is used in T-tests. In a simple T-test;

DF = n - 1

where n is the sample size

Given n is 459, DF = 459 - 1 = 458

Therefore, DF = 458

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Step- by- Step Explanation

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3 years ago
How do you write 3/4 as percentage?
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3/4 is 75%

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It was 3 feet long...............
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Plz help will make the Brainly
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Two points (1,0) (0,2) use slope formula 0-2/1-0

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