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Elanso [62]
3 years ago
11

The data set represents a bimonthly progression of gasoline prices over the course of several months in an unspecified city. Use

a graphing calculator to determine the quadratic regression equation for this data set.
x
0
2
4
6
8
y
2.86
2.89
2.93
3.04
3.11
Mathematics
1 answer:
hodyreva [135]3 years ago
4 0
Plugging in the data points into a quadratic regression application, we get the following regression:

y = ax^2 + bx + c,
where:
a= 0.00267857
b= 0.0110714
c= 2.85743
with an R² value of 0.9851
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Can someone please help!!!!!!!
svetoff [14.1K]

The graph is attached in the figure below.

Step-by-step explanation:

To graph a point we perform the following steps.

  • Consider point J(-5,2.5)
  • Here x = -5, and y = 2.5
  • Find -5 in x axis and 2.5 in y-axis. the point where both meet is the point for J on graph.

All other points are also drawn in the graph following the above steps.

The graph is attached in the figure below.

Keywords: Graph

Learn more about Graphs at:

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  • brainly.com/question/2334270

#learnwithBrainly

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%3D%20%20%5Cfrac%7B121%7D%7B196%7D%20" id="TexFormula1" title=" {x}^{2}
Artist 52 [7]

x^2=\dfrac{121}{196}\iff x=\pm\sqrt{\dfrac{121}{196}}\\\\x=-\dfrac{\sqrt{121}}{\sqrt{196}}\ \vee\ x=\dfrac{\sqrt{121}}{\sqrt{196}}\\\\\boxed{x=-\dfrac{11}{14}\ \vee\ x=\dfrac{11}{14}}\\\\\sqrt{a}=b\iff b^2=a\\\\\sqrt{121}=11\ \text{because}\ 11^2=121\\\\\sqrt{196}=14\ \text{because}\ 14^2=196

7 0
4 years ago
Jorge wants to find the most popular way for teens to volunteer in the community. He cannot decide between two methods. Option 1
ale4655 [162]
Option 2 would be biased.  Asking people participating in a walkathon means you are asking people that are already volunteering.  To get a non-biased sample, you have to be sure that you are including people that are not guaranteed to be volunteers; you don't have that in this situation.
4 0
3 years ago
Read 2 more answers
−3/2⋅4⋅1/2(10−8) hurry
Tasya [4]

The result of the given expression is  -6

<h3>Solving expressions</h3>

Given the expression below

−3/2⋅4⋅1/2(10−8)

Expand to have;

-3/2 * 4 * 1/2(2)

-3/2 * 4 * 1

-3/2  * 4

This is expressed as;

-12/2

-6

Hence the result of the given expression is  -6

Learn more on equation here:brainly.com/question/2972832

#SPJ1

8 0
2 years ago
Lily was shopping and saw the following prices on different packages of the same item as shown in the diagram below
Dafna11 [192]

Answer:

Package B has a unit rate of $1.50 per bag

Step-by-step explanation:

its the correct answer if its wrong deal with it

7 0
3 years ago
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