Roger Hunt intends to purchase one of two car dealerships currently for sale in a certain city. Records obtained from each of the two dealers reveal that their weekly volume of sales, with corresponding probabilities, are as follows.
The average profit/car at Dahl Motors is $367, and the average profit/car at Farthington Auto Sales is $439.
If Roger's objective is to purchase the dealership that generates the higher weekly profit, which dealership should he purchase? (Compare the expected weekly profit for each dealership.)
a. Farthington Auto Sales
b. Dahl Motors
c. either of the two
a. Farthington Auto Sales
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Provide an appropriate response.Solve the following system of equations graphically: 2x - y = -3 x - y = 1
Fill in the blank(s) with the appropriate word(s).
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 7x2 + 6, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. not one-to-one
D. f-1(x) = 
Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 
, y = 
; 
B. x = - 
, y = - 
; 
C. x = 
, y = - 
; 
D. not applicable
Determine if the statement is a proportion.I. 
II. 
A. I is a proportion, II is not a proportion. B. I is not a proportion, II is a proportion. C. I and II are both proportions. D. Neither I nor II are proportions.