b Math for XbraWeekookSdC$wwwK7899120135153168172+%56What does the x-intercept on the graph of y = T(X)represent?c. Solve part (a) symbolically.97. U.S. Social Gaming Social gaming revenues (via the Internet) inbillions of dollars from 2010 to 2015 were modeled by R(x) =0.86x + 1.2, where x represents years after 2010. (Source: BlIntelligence.)a.OInterpret the slope of the graph of R.b. Estimate when revenue was more than $3 billion.98. Overweight Americans If trends continue, the past and futurepercentages of the population who are overweight can beestimated by W(x) = x + 45, where x represents years after 1980.(Source: New York Times.)a.&7000000_7114 [P70010134770000000DOURDOO030 *8O9✓)QAA F04<133890+LwwwX7.596backspace

Given that the equation represents the social gaming revenues in billions is Rx=0.86x+1.2, where x…

Answered: b Math for X bra Week ook S d C $ www K…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 55E

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When hired at a new job selling electronics, you aregiven two pay options: • Option A: Base salary of $10,000 a year with acommission of 9% of your sales • Option B: Base salary of $20,000 a year with acommission of 4% of your sales How much electronics would you need to sell foroption A to produce a larger income?
When hired at a new job selling jewelry, you aregiven two pay options: • Option A: Base salary of $17,000 a year with acommission of 12% of your sales • Option B: Base salary of $20,000 a year with acommission of 5% of your sales How much jewelry would you need to sell for optionA to produce a larger income?
Medical research indicates that the risk of having a car accident increasesexponentially as the concentration of alcohol in the blood increases. The risk is modeled by R = 6e12.77x, where x is the blood alcohol concentration and R, given as a percent, is the risk of having a car accident. What blood alcohol concentration corresponds to a 17% risk of a car accident? How is this shown on the graph of R in the herewith given Figure?
In a town of 50,000 people, there were initially 80 cases of a particularly virulent strain of flu.The Center for Disease Control and Prevention in Atlanta claims that the cumulative number of infections will increase by 30% per week if there are no limiting factors. The cumulative number of cases of flu in the town is given by f(x)= L/(1+Ae^(-Bx)) cases, x weeks since the initial outbreak. Complete the model by finding the values for L, A, and B: A) What is the limiting value for f(x)? B) What is the initial value for f(x)? C) Use the values from A and B to find the value of the constant A in the model f(x).
In the given question , two models R1 and R2 are given for revenue (in millions of dollars) for a corporation. Both models are estimates of revenues from 2020 through 2025, with t = 0 corresponding to 2020. Which model projects the greater revenue? How much more total revenue does thatmodel project over the six-year period? R1 =7.21 + 0.58t R2 =7.21 + 0.45t
The graphs show the percentage of jobs in the U.S. labor force held by men and by women from 1970 through 2015.The formulap = 1.6√t + 38models the percentage of jobs in the U.S. labor force, p, held by women t years after 1970.a. Use the appropriate graph to estimate the percentage of jobs in the U.S. labor force held by women in 2010. Give your estimation to the nearest percent.b. Use the mathematical model to determine the percentage of jobs in the U.S. labor force held by women in 2010. Round to the nearest tenth of a percent.c. According to the formula, when will 51% of jobs in the U.S. labor force be held by women? Round to the nearest year.
The population P (in millions) of Italy from 2003 through 2015 can be approximated by the model P = 57.59e0.0051t, where t represents the year, with t = 3 corresponding to 2003. (a) According to the model, is the population of Italy increasing or decreasing? Explain. Because the coefficient of the model is ---Select--- positive negative , the population is ---Select--- increasing decreasing . (c) Use the model to predict the populations of the country in 2021 and 2026. (Round your answers to three decimal places.) 2021 million 2026 million
A minute ad during a campaign in 1973 cost $200,000. The price tag for a 30-second ad slot during a 2006 campaign was $3 million. The cost of a 30-second slot of advertising for a campaign can be modeled by y=0.00009671.103x, where x is the number of years after 1900 and y is the cost in millions. Complete (a) and (b) below. a. According to the model, what was the cost of a 30-second campaign ad in 2005? The cost of a 30-second campaign ad in 2005 was $nothing. (Simplify your answer. Round to the nearest dollar as needed.)
A manager wishes to predict the annual cost (y) of an automobile based on the number of miles (x) driven. The following model was developed: y = 2,000 + 0.42x. If a car is driven 30,000 miles, the predicted cost is _____________. 14,600 10,400 32,000 2,000 10,250
The variable interest rate on a student loan changes eachJuly 1 based on the bank prime loan rate. For the years1992–2007, this rate can be approximated by the modelr(x) = - 0.115x2 + 1.183x + 5.623,where x is the number of years since 1992 and r is theinterest rate as a percent.(a) Use a graphing utility to estimate the highest rate duringthis time period. During which year was the interest ratethe highest?(b) Use the model to estimate the rate in 2010. Does thisvalue seem reasonable?Source: U.S. Federal Reserve
The graphs show the percentage of jobs in the U.S. labor force held by men and by women from 1970 through 2015. The formula p = 1.62√t + 38 models the percentage of jobs in the U.S. labor force, p, held by women t years after 1970. Solve, c. According to the formula, when will 51% of jobs in the U.S. labor force be held by women? Round to the nearest year.

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