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Are the statements in Problems 66–69 true or false? Give an explanation for your answer.
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Calculus: Single And Multivariable
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- Which of the following is a valid pdf (accounting for rounding)? a.) f(x)= (x2+2)/10 x= 1,2 b.) f(x)= (x2-2)/7 x= 1,2,3 c.) f(x)= 3(x3/x) x= 0.2, 0.3655, 0.4 d.) f(x)= (x+1)/3 e.) x/50 x= 10, 20, 30arrow_forward1) 2) 3) 2名ャ1 2% 1%= D000000 5) " 2%+2%arrow_forward150. A corporation’s annual profits and losses for a six-year period are shown in the graph inFigure 13–30.Figure 13–30a. What is the increase or decrease in profits for the years listed?(1) the 1st to the 2nd year(2) the 2nd to the 4th year(3) the 3rd to the 5th year(4) the 4th to the 6th yearb. What is the total dollar amount lost by the corporation from the 3rd through the 5th year?c. What is the net profit or loss for the 6-year period?d. What is the average annual profit or loss for the 6-year period?arrow_forward
- 2) The Nikkei 225 index is a stock market index for the Tokyo Stock Exchange. The Nikkei 225 index for the period 1990-2010 can be modeled by V (t) = 23,500e-0.0381t where t is the number of years after 1990. Determine how many years after 1990 the Nikkei 225 index reached $20,000.arrow_forwardConsider a tack like the one pictured below. When dropped on a table, the tack can land either point down or point up. Suppose we assume that P(tack lands point down) = 0.40. Which of the following must be true? (A) If the tack is dropped 50 times and lands point down only 10 times, then it must land point down more than 40% of the time in the next 50 drops. (B) If the tack is dropped on a table 10 times, it will land point down 4 times. (C) If the tack is dropped on a table 1,000,000 times, it will land point down 400,000 times. (D) Over many tack drops, the proportion that land point down will be very close to 0.40. (E) The tack landed point down twice in a simple random sample of 5 people who dropped it on a table.arrow_forwardFor f(x) and g(x) given in Problems 35–38, find (a) (f + g)(x) (b) (f – g)(x) (c) (f'g)(x) (d) (f/g)(x) 35. f(x) = 3x g(x) = x' 36. f(x) = Vx g(x) = 1/x 37. f(x) = V2x g(x) = x² 38. f(x) = (x – 1)? g(x) = 1 – 2x Click to %3D For f(x) and g(x) given in Problems 39–42, find (a) (fº g)(x) (b) (g •f)(x) (c) ƒ(f(x)) (d) f(x) = (f·f)(x) 39. f(x) = (x – 1)³ g(x) = 1 – 2x 40. f(x) = 3x g(x) = x' – 1 41. f(x) = 2Vx g(x) = x* + 5 %3D %3D 1 42. f(x) = g(x) = 4x + 1arrow_forward
- The following table gives the millions of metric tons of carbon dioxide emissions in a certain country for selected years from 2010 and projected to 2012 2010 2012 2014 2016 336.5 363.5 398.1 Year CO, Emissions 2018 424.8 451.1 Year 2022 2024 2026 2028 2030 Co, Emissions 559.2 591.9 628.7 665.1 707.1 2020 2032 743.7 Using x as the number of years past 2010 and y as the millions of metric tons of carbon dioxide emissions, write the equation of the linear function that models these data. (Round all numerical values to two decimal places.) Hint: Let x 0 in 2010. y(x) =arrow_forward#18) Find the indicated derivative for each functionarrow_forward2) An initial investment of $10,000 grows at 11% per year. What function represents the value of the investment after t years? R) - 10,000(1.11) R) - 10,000(1.11) - 10,000(11)' A) – 10,000(0.11)' a. c. b. d.arrow_forward
- 6. Answer the problems completely. Round off your answers up to four decimal places, with correct units and box or encircle them.arrow_forward7. Answer the problems completely. Round off your answers up to four decimal places, with correct units and box or encircle them.arrow_forward14) The total health expenditure per capita is modeled by H(1) 67e00 where f is the number of years. The predicted health expenditures (in dollar) after 13 years isarrow_forward
- Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning