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Veronika [31]
4 years ago
5

What is the domain of the function indicated by the points on the coordinate plane?

Mathematics
1 answer:
Sophie [7]4 years ago
7 0
The answer is C if not sorry
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Can someone show me the steps to solve #83 please?
gulaghasi [49]

Answer:

  18π ≈ 56.5 meters

Step-by-step explanation:

The length of the arc of a circle is given by the formula ...

  s = rθ . . . . where r is the radius, and θ is the central angle in radians

<h3>Application</h3>

You are given the values of r and θ, so you only need to put them into the formula and simplify.

  s = (27 m)(2π/3) = 18π m

The length of the arc is 18π meters, about 56.5 meters.

7 0
2 years ago
Point G is on line segment FH. Given FH = 19 and FG = 12,<br> determine the length GH.
Alex777 [14]

Answer:

7

Step-by-step explanation:

Let’s think about this like a number line.

If we have a number line with the ends of F and H, and G is somewhere in between, it would look something like this.

F———-G———H

We know that FH = 19 and that FG is 12.

This means that GH will be the FH - FG

19 - 12 = 7

So FG is 7.

Hope this helped!

4 0
4 years ago
A statistics practitioner in a large university is investigating the factors that affect salary of professors. He wondered if ev
Ulleksa [173]

Answer:

Step-by-step explanation:

Hello!

Given the linear regression of Y: "Annual salary" as a function of X: "Mean score on teaching evaluation" of a population of university professors. It is desired to study whether student evaluations are related to salaries.

The population equation line is

E(Y)= β₀ + β₁X

Using the information of a n= 100 sample, the following data was calculated:

R²= 0.23

                Coefficient    Standard Error  

Intercept    25675.5           11393

x                  5321                  2119

The estimated equation is

^Y= 25675.5 + 5321X

Now if the interest is to test if the teaching evaluation affects the proffesor's annual salary, the hypotheses are:

H₀: β = 0

H₁: β ≠ 0

There are two statistic you can use to make this test, a Student's t or an ANOVA F.

Since you have information about the estimation of  β you can calculate the two tailed t test using the formula:

t= \frac{b - \beta }{\frac{Sb}{\sqrt{n} } } ~t_{n-2}

t= \frac{ 5321 - 0 }{\frac{2119}{\sqrt{100} } } = 25.1109

The p-value is two-tailed, and is the probability of getting a value as extreme as the calculated t_{H_0} under the distribution t_{98}

p-value < 0.00001

I hope it helps!

3 0
3 years ago
2(x + 1) + 1 = 1 - 2(x - 7)​
Rus_ich [418]

Answer:

x = 3.

Step-by-step explanation:

2(x + 1) + 1 = 1 - 2(x - 7)​

2x + 2 + 1 = 1 - 2x + 14

4x = 1 + 14 - 2 - 1

4x = 12

x = 3.

4 0
3 years ago
Read 2 more answers
Can someone please help me and explain this to me ! Thanks !
Korolek [52]
Imagine first splitting 6 wholes up into fourths. That means that, for each whole (each 1) in 6, we're creating 4 equal slices. This gives us 4 x 6 = 24 total slices, which we call <em>fourths</em>. How many groups of <em>3 fourths </em>(3/4) can you make out of those <em>24 fourths </em>(24/4)? If we throw aside the label <em>fourths</em> for a minute, in general, if we have 24 <em>things</em>, how many groups of 3 <em>things</em> can we make out of those? Well, our answer there would just be 24 ÷ 3 = 8 groups.

The same thing applies to fourths. If we have 24/4, and we divide it by 3/4, we get 24 ÷ 3 = 8 groups again, so our answer is <em />8 3/4-pound packages.
5 0
4 years ago
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