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kherson [118]
3 years ago
11

Find the domain of the function. (Enter your answer using interval notation.)

Mathematics
1 answer:
Rudik [331]3 years ago
7 0
All real numbers since there is no exclusions. (-inf, inf)
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What is the value of x?
Helga [31]

2x+20=3x-30

x=50

2x+20=3x-30

x=50

2x+20=3x-30

x=50

2x+20=3x-30

x=50

7 0
3 years ago
nia has number cards for the 2,3,8,9,5 what are all the different ways one can arrange the cards of even number of two in the te
Sonbull [250]
There are 6 different ways:

23,598
23,958
25,398
25,938
29,538
29,358

5 0
3 years ago
A professor obtains SAT scores and freshman GPA for a group of 15 college students with the hope that she can predict GPA using
kramer

The hypothesis test analyzes the null and alternative hypothesis of the

plausibility of a correlation between the SAT scores and GPA.

  • The hypothesis test that would be appropriate is <u>a hypothesis test that checks that the slope of the regression line is not zero</u>.

Reasons:

The data collected by the professor = The scores of the college students

The type of scores collected = SAT scores, and GPA scores

The test that would be appropriate for the example, is the  test for the

existence of a significant linear relationship between the input variable

(the SAT scores) and the output variable (the GPA)

The test is known as <u>the test for the slope of the regression line</u>

The equation of the regression line is; Y = B₀ + B₁·X

Where;

Y = The value of the GPA score (The dependent variable)

X = The value of the SAT score (The independent variable)

The test aims to check that the value the slope of the regression line is

much different from zero, such that there exist a correlation.

Learn more about hypothesis test for linear regression here:

brainly.com/question/13938204

4 0
2 years ago
Two towns are 324 miles apart. on a map they are 4 1/2 apart. the scale of the map is 1
Rom4ik [11]
Shouled be 1:32 if u divide 324/(4.5)
6 0
3 years ago
a store marks up the wholesale price of a skateboard by 112%. The retail price is $35. What is the wholesale price of the skateb
koban [17]
Answer is $31.25
Step by step
We know mark up is 112%
We know sell price (retail) after markup
We are looking for wholesale (original price)
So 112% of x = $35
1.12x = $35
Divide both sides by 1.12 to isolate x
X= 31.25
3 0
2 years ago
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