Provide an appropriate response.Which one of the following methods cannot be used to solve the equation 
A. Factoring
B. Completing the square
C. Quadratic formula
D. All of the methods can be used.
Answer: A
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Provide an appropriate response.Find the direction of the vector in standard position with end point (8, 3). Round to the nearest hundredth.
A. 67.98° B. 69.44° C. 20.56° D. 22.02°
Find the domain of the function. Put your answer in set-builder notation.f(x) = 
A. {x 
B. {x 
C. {x 
D. {x 
Solve the problem using your calculator.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). Use linear regression to find a linear function that predicts the number of products sold as a function of the cost of advertising.
A. y = -26.4 - 1.42x B. y = 55.8 - 2.79x C. y = 26.4 + 1.42x D. y = 55.8 + 2.79x
The two lines -2x + y = 3 and -3x + y = 2
A. are parallel. B. intersect in exactly one point. C. are perpendicular. D. coincide. E. none of these