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Brums [2.3K]
3 years ago
14

You have been hired by joe's gas stop to estimate a demand function for its regular gasoline sales. occordingly, you collect 50

days of data on quantity sold (the dependent variable measured in gallons) and price (the explanatory variable measured in cents per gallon). the data is shown on the "gasoline demand data" tab and an x-y scatter of the data is shown at right. you use the "data analysis add-in" to estimate the regression results shown below:
Mathematics
1 answer:
Digiron [165]3 years ago
8 0
(a) Sample correlation ==> -0.7916
(b) Standard Deviation for Quantity ==> 801.6816
(c) Standard Deviation for Price ==> 39.1660
(d) Relation to coefficient on Price ==> <span>−16.2028</span>
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Solve this system of equations <br> y = 2x <br> x = -y + 6
Trava [24]
X = -2x + 6
3x = 6
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Answer: x=2, y=4
4 0
3 years ago
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One number is 2 more than 3 times another. their sum is 22. find the numbers.
kramer
This question is asking for the value of two numbers, which we can label as:

#1 = x
(Any value we do not know can be represented with a variable)
#2 = 3x + 2
("2 more" means + 2, and "3 times" means multiply by 3. The "another" is the variable we talked about before. Combining everything we have 3x + 2).

The last piece of information we are given is that the sum of the two numbers is 22. The word sum indicates that we need to add the two numbers, and when they added they will equal the integer 22.
(x) + (3x + 2) = 22
x + 3x + 2 = 22
Combine like terms
4x + 2 = 22
Subtract 2 from both sides
4x = 20
Divide 4 from both sides
x = 5

This sole value of "x" already gives us the value of the first number. Since our second number is "3x + 2", all we have to do is plug in the value of x into the expression.

3x + 2 = 3(5) + 2 = 15 + 2 = 17
The second number is 17.

Final Answer: The two numbers are 5 and 17.
(If you want to check, add the two numbers and make sure they add up to 22 and multiply 5 by 3 and add 2.)

8 0
3 years ago
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Which figure has a perimeter of 34 feet ?<br> Option(s):<br> A)<br> B)<br> C)<br> D)
ch4aika [34]
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2 years ago
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Answer:

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Step-by-step explanation:

We need to solve the expression

\sqrt{\frac{3}{64} }

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Solving we get

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So \sqrt{\frac{3}{64} } in simplified form is \frac{\sqrt{3}}{8}

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Answer:

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Step-by-step explanation:

its so obvious my g

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