For a specific item, the weight of the item is linearly related to the cost of the item.Weights and costs were recorded for several of these items. Using the data, find theslope of the regression equation that can be used to predict the price of one of theseitems knowing how much is weighs. Use your calculator to find an answer.Round answer to two decimal places (e.g. 5.1764 would round to 5.18)cost (in $)30.30 26.0025.6weights (in pounds)8.523.27.89.06.5Don't forget to round your answer to two decimal places.Your Answer:28.206.832.809.4

cost (in $) x23.230.3026.0028.2032.8025.6weights (in pounds) y7.89.06.56.89.48.5

Answered: For a specific item, the weight of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In 2010, the number of clown costumes sold at a single costume shop was 15. By 2015, that number had grown to 30. Assuming a constant increase in clown costume sales, calculate the unit rate of change (slope) from 2010 to 2015. Round your answer to the nearest tenth. Do not include units with your answer.
A survey is conducted on 700 Californians older than 30 years of age. The study wants to obtain inference on the relationship between years of education and yearly income in dollars. The response variable is income in dollars and the explanatory variable is years of education. A simple linear regression model is fit, and the output from R is below: Im(formula = Income Coefficients: ~ Education, data = CA) Estimate Std. Error t value Pr(>|t|) (Intercept) 25200.25 1488.94 16.93 3.08e-10 Education 2905.35 112.61 25.80 1.49e-12 *** *** Residual standard error: 32400 on 698 degrees of freedom Multiple R-squared: 0.7602
The number y of objects a machine produces is proportional to the time x (in minutes) that the machine runs. The machine produces five objects in four minutes. a. Write an equation that represents the situation. y%3D b. Graph the equation in part (a) and interpret the slope. Line * Undo A Redo x Reset 20. 15 10 10 20 The slope indicates that the unit rate is objects produced per minute. c. How many objects does the machine produce in one hour? objects are produced in 1 hour.
When driving down a mountain road, you notice warning signs indicating that it is a "11% grade." This means that the slope of the road is −11/100. Approximate the amount of horizontal change in your position if you note from elevation markers that you have descended 2000 feet vertically. (Round your answer to one decimal place.)
This table shows the systolic blood pressure of y, patients x years old. state the slope and interpret the meaning in the context of this problem.
Use linear regression to find the equation for the linear function that best fits this data. Round both the numbers to two decimal places. Write your final answer in a form of an equation y=mx+b
Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient of x should be positive or negative. O A. linear, negative O B. quadratic; negative O C. quadratic; positive O D. linear; positive 3- 2- -5 43 2 2. 3 4 5 20 -4-
Part c?
A new car worth $22,000 is depreciating in value by $2000 per year. Complete parts (a) through (c) a. Write a formula that models the car's value, y, in dollars, after x years. b. Use the formula from part (a) to determine after how many years the car's value will be $16,000. c. Graph the formula from part (a) in the first quadrant of a rectangular coordinate system Then, show your solution to part (b) on the graph. a. A formula that models the car's value, y, in dollars, after x years is (Type an equation.) b. After years, the car's value will be $16,000. (Type a whole number.) c. Choose the correct graph below. OA. OB. Oc. OD. Ay 22,000 Ay 10+ 10- 22,000- 0+ 10 2200 2200 Click to select your answer(s). P Type here to search A 4) C PrtSc Insert Delete F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F1 F2 @ & Backspace
Pis a parallelogram. What additional informatio rectangle? 5. M(2.4) The length of LM is - The slope of LP and M 4. 1) 2 N(3,2) LM II PN LP 1 PN 5 -4 3 3 4 P(-3,-1) 2 -5
Darnell has recorded the estimated value of his car each year since 2017. Let x=1 correspond to the year 2017. Find the slope-intercept form of the equation for the line that passes through the points representing the value of his car in 2017, (1,24,349), and the value of his car in 2021, (5,17,999). Round the slope to the nearest hundredth, if necessary. Year Value, $$ 2017 24,349 2018 22,200 2019 20,100 2020 19,100 2021 17,999
la. Make a scatter plot of the table provided in the image. B. Write a linear/exponential equation that models this table provided in the image. C. Explain what the slope/multiplier means in the context of the problem. D. Use your model to predict when there will be 100 new cases I have already made a scatter plot so I mainly need help with questions B, C, and D. Thank you for your help!

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