Solve the problem.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). By using linear regression, the following function is obtained: 
where x is the cost of advertising (in thousands of dollars) and y is number of products sold (in thousands). Use this function to predict the number of products sold if the cost of advertising is $7000. Round to the nearest hundredth.
A. 82.03
B. 72.33
C. 19,585.8
D. 75.33
Answer: D
Mathematics
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A. has no Hamilton circuit. B. has several Hamilton circuits, none of which contain the edge BE. C. has several Hamilton circuits, all of which contain the edge CE. D. has a single Hamilton circuit (and its mirror-image circuit). E. none of these
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Graph the quadratic equation.y = -x2 + 2x
A. 
B. 
C. 
D. 
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Solve the equation and check your solution.
= 
A. 
B. 
C. 
D. 1
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Rewrite 
as a rational functionS(n) and find 
.
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics