Sales The sales S (in thousands of units) of a seasonal product are given by the model
where t is the time in months, with t = 1 corresponding to January. Find the average sales for each time period.
(a) The first quarter
(b) The second quarter
(c) The entire year
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Chapter 4 Solutions
Calculus (MindTap Course List)
- A driver of a car stopped at a gas station to fill up his gas tank. He looked at his watch, and the time read exactly 3:40 p.m. At this time, he started pumping gas into the tank. At exactly 3:44, the tank was full and he noticed that he had pumped 10.7 gallons. What is the average rate of flow of the gasoline into the gas tank?arrow_forwardIf you travel 300 miles on the first day and then drive v miles per hour for t hours on the second day, then the total distance traveled over the teo-day period is given by d=300+vt miles. Use a formula to express v as a function of d and t for this two-day event.arrow_forwardAir Temperature As dry air moves upward, it expand and, in so doing, cools at a rate of about 1°C for each 100-meter rise, up to about 12 km. (a) If the ground temperature is 20°C, write a formula for the temperature at height h. (b) What range of temperatures can be expected if an air plane lakes off and reaches a maximum height of 5 km?arrow_forward
- Define Newton’s Law of Cooling. Then name at least three real-world situations where Newton’s Law of Cooling would be applied.arrow_forwardClosure The temperature in an office is controlled by an electronic thermostat. The temperatures vary according to the sinusoidal function y = 19 + 6 sin (-), where y is the temperature, in 12 degrees Celsius, and x is the time, in hours, past midnight. At what hours during the day do the maximum and minimum temperatures occur? C17, 25) maxinu (29,13) mini .arrow_forward
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