Solve the problem.The number of VHS movie rentals has declined since the year 2000 due to the popularity of DVDs, as the following table shows. The exponential regression equation was found to be
where x represents the number of years since 2000. Use the regression equations to predict the number of VHS movie rentals in 2,007.
A. 0.25
B. 0
C. 2.47
D. 56.28
Answer: C
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Change the given polar coordinates (r, ?) to rectangular coordinates (x, y).
A.
B.
C.
D.
Find the exact value of the expression or state that it does not exist.csc
A. -
B.
C.
D. -
For the rational function below (i) Find the intercepts for the graph; (ii) Determine the domain; (iii) Find any vertical or horizontal asymptotes for the graph; (iv) Sketch any asymptotes as dashed lines. Then sketch the graph of y = f(x).f(x) =
A. (i) x intercept: 3; y intercept:
(ii) Domain: all real numbers except 4
(iii) Vertical asymptote: x = 4; horizontal asymptote: y = 1
(iv)
B. (i) x intercept: -3; y intercept:
(ii) Domain: all real numbers except -4
(iii) Vertical asymptote: x = -4; horizontal asymptote: y = 1
(iv)
C. (i) x intercept: -5; y intercept:
(ii) Domain: all real numbers except -4
(iii) Vertical asymptote: x = -4; horizontal asymptote: y = 1
(iv)
D. (i) x intercept: 5; y intercept:
(ii) Domain: all real numbers except 4
(iii) Vertical asymptote: x = 4; horizontal asymptote: y = 1
(iv)
Multiply and simplify. Assume that all variables represent positive real numbers.(
-
)
A. -
B. 7 + 7
C. 8
D.