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Quadratics: Just write out your solution:Problem #43Sales of digital cameras in the United States (in millions of dollars) between 2000 and2006 are shown in the table. In the year column, 0 represents 2000, 1 represents 2001, and so on.Source: ConsumerElectronics Association.Year Sales0 18251 19722 27943 39214 47395 56116 7805(a) Use the ordered pairs (year, sales) to make a scatter diagram of the data.(b) Use the scatter diagram to decide whether a linear or quadratic function would better model the data. If quadratic, should the coefficient a of be positive or negative?(c) Use the ordered pairs 0, 1825 , 3, 3921 , and 6, 7805 to find a quadratic function that models the data. Round the values of a, b, and c in your model to the nearest tenth, as necessary.(d) Use your model from part (c) to approximate the sales of digital cameras in the United States in 2007. Round your answer to the nearest whole number (of millions).(e) Sales of digital cameras were $6517 million in 2007. Based on this, is the model valid for 2007? Explain.
A spring with a 2 kg mass attached to it has spring constant 8 N/m and no damping. There is an external force given by F(t) = 24 sin 2t N, where t is time. The mass is initially stretched 2 m beyond the equilibrium position and released with an in..
An investment grows by 21% over a 6-year period. What is its effective annual percent growth rate?
Determine the multiple integral under given condition using spherical coordinate - Determine the following triple integral by converting it to an appropriate coordinate system and integrating.
On a national standardized test with a normal distribution of scores, a mean of 50, and a standard deviation of 3.2, a student's score is 1.2 standard deviations above the mean.
application of differential calculus maximization and minimization.you run a small furniture business. you sign a deal
Assuming that the weights of firemen are normally distributed, to test her research hypothesis the statistician would use a chi-square test. In that case, what is the computed test value?
a grocer mixes together four pounds of peanuts costing $2 per pound with two pounds of walnuts costing $5 per pound. what should the price per pound of this mixture be?
Initially, the depth of water in a tank is 32m . Water drains from the tank through a hole cut in the bottom. At t minutes the water begins drainning, the depth of water in the tank is x metres. The water level changes at a rate equal to (-2t-4).
To the nearest tenth of a cubic inch, how much volume is added to a spherical balloon whose radius grows from 10 to 20 inches long?
At 6 AM a snowplow, traveling at a constant speed, begins to clear a highway leading out of town. At 8 AM an automobile begins traveling the highway at a speed of 30 mi/hr and reaches the plow 30 minutes later. Find the speed of the snowplow.
Find the amount of the winning bid if there were 7 bidders.
semicircles are placed on the sides of an equilateral triangle with sides 10.1 feet. find the shaded area. with this problem the whole thing is shaded.
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