Answer:
They help you see progressions but sometimes graphs can be manipulated to convey specific data and hide others like using methods called cherry picking, changing x and y axis and etc.
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:
68 degrees
Step-by-step explanation:
2 complementary angles make up a 90 degree angle.
90 degrees - 22 degrees = 68 degrees
Linear.
1/14
2/28
3/42
4/56
on a graph, it forms a straight line.
Answer:
The answer to your question is the second and the last choices
Step-by-step explanation:
Data
Enterprises cost cost per hour
Rock the house $500 $50
Elegant home $75
Process
1.- Write an equation for the total cost in Rock the house
Total cost = $500 + 50h
2.- Write an equation for the total cost in Elegant home
Total cost = $75h
Solution
- The first option is incorrect because it does not consider the initial cost
- The second option is correct
-The third option is incorrect, it would be correct if they work with both enterprises
- In rock the house 500 + 50(15) = 500 + 750 = $1250
- In Elegant home 75(15) = $1125
-The last option is also correct
