answer 1 only Question 1Predict the shear strength in psi f the age is 17 weeks. Round off your answer to the nearest tenth.Question 2Predict the shear strength in psi if the age is 14 days. Round off your answer to the nearest integer.Question 3Fit a straight line by the method of least squares. Calculate the slope. Report your answer to one decimal place. Arocket motor is marufactured by bonding together two types of propelants. an igniter and a sustainer. The shear strength of the bond is thought to be a linear function of the age ofthe propellant when the motor is cast. Twenty observations are shown in the following table.Observation Strength.(ps) (weeks)Age .Observation StrengthAge(psi) I (weeks)NumberNumber12585 6.5 I112210517522367.913.3 I12266427532326125 I 1317898282287.7. 18 I 141763725115 1 152217517753276.2168.720.8 I162175219420713 23 I 172345.7515244 I 18181832063524293 I 1924244 los179471688 15 304240955102078

Given: Obs. no. Strength Age 1 2585 6.5 2 2367.9 13.3 3 2326 12.5 4 2287.9 18 5 2217.5…

Answered: Question 1 Predict the shear strength…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 60E

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Does Table 1 represent a linear function? If so, finda linear equation that models the data.
Tuition at American Public Universities This is a continuation of Exercise 6. The following table shows the average yearly in-state tuition and required fees, in dollars, charged by four-year American public universities in the school year ending in the given year. Date Average tuition 2012 8318 2013 8595 2014 8872 2015 9149 2016 9426 a. Show that these data can be modeled by a linear function, and find its formula. b. What is the slope for the linear function modeling tuition and required fees for public universities? c. What is the slope of the linear function modeling tuition and required fees for private universities? Note: See Exercise 6. d. Explain what the information in parts b and c tells you about the rate of increase in tuition in public versus private institutions. e. Which type of institution shows the larger percentage increase from 2015 to 2016? 6. Tuition at American Private Universities The following table shows the average yearly tuition and required fees, in dollars, charged by four-year American private nonprofit universities in the school year ending in the given year. Date Average tuition 2012 27, 870 2013 29, 004 2014 30, 138 2015 31, 272 2016 32, 406 a. Show that these data can be modeled by a linear function, and find its formula. b. Plot the data points and add the graph of the linear formula you found in part a. c. What prediction does this formula give for average tuition and fees at four-year American private nonprofit universities for the academic year ending in 2021?
Later High School Graduates This is a continuation of Exercise 16. The following table shows the number, in millions, graduating from high school in the United States in the given year. Year Number graduating in millions 2001 2.85 2003 2.98 2005 3.11 2007 3.24 a. Find the slope of the linear function modeling high school graduations, and explain in practical terms the meaning of the slope. b. Find a formula for a linear function that models these data. c. Express, using functional notation, the number graduating from high school in 2008, and then calculate the value. d. The actual number graduating from high school in 1994 was about 2.52 million. Compare this with the value given by the formula in part b and with your answer to part of Exercise 16. Which is closer to the actual value? In general terms, what was the trend in high school graduations from 1985 to 2007? 16. High School Graduates The following table shows the number, in millions, graduating from high school in the United States in the given year.16 Year Number graduating in millions 1985 2.83 1987 2.65 1989 2.47 1991 2.29 a. By calculating difference, show that these data can be modeled using a linear function. b. What is the slope for the linear function modeling high school graduations? Explain in practical terms the meaning of the slope. c. Find a formula for a linear function that models these data. d. Express, using functional notation, the number graduating from high school in 1994, and then use your formula from part c to calculate that value.

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Question 1 Predict the shear strength in psi the age k 17 weeks. Round off your answer to the nearest tenth.