Finding the regression equation, her average speed on the 9th day should be expected to be of 6.92 minutes per mile.
<h3>How to find the equation of linear regression using a calculator?</h3>
To find the equation, we need to insert the points (x,y) in the calculator.
Researching the problem on the internet, the values of x and y are given as follows:
- Values of x: 1, 2, 3, 4, 5, 6.
- Values of y: 8.2, 8.1, 7.5, 7.8, 7.4, 7.5.
Hence, using a calculator, the equation for the average minutes per mile after t days is given by:
V(t) = -0.15143t + 8.28
Hence, for the 9th day, t = 9, hence the estimate is:
V(9) = -0.15143(9) + 8.28 = 6.92 minutes per mile.
More can be learned about regression equations at brainly.com/question/25987747
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Answer:
Step-by-step explanation:
Y= -6
X=-2
Step-by-step explanation:
If we assume A = the amount of candles she produces and sells then we can assume this equation.
(4.00×A) - ((A×1.50)+200)
The first part is calculating how much Claire makes at first with her candles being sold while taking account of the amoubt of candles and the cost for making one.
The second part is for the Amount of candles and the cost of starting and the cost of each candle and that amount is the amount Claire will lose and subtracted by the first amount.
Answer:
<em>Answer is option</em><em> </em><em>4</em><em>)</em><em> </em><em>7</em><em>:</em><em>13</em>
Step-by-step explanation:
There are 14 girls in the class . AND
There are 26 (14+12) students in the class.
<em>Ratio</em><em> </em><em>of</em><em> </em><em>girls</em><em> </em><em>to</em><em> </em><em>students</em><em> </em><em>is</em><em> </em><em> </em><em>14</em><em>:</em><em>26</em>
<em>when</em><em> </em><em>cancelling</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>we</em><em> </em><em>get the</em><em> </em><em>answer</em><em> </em><em>7</em><em>:</em><em>13</em>
<em>HAVE A NICE DAY</em><em>!</em>
<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>
