The cost C of a gallon of gasoline at a certain station in 1974 was $0.49. In 2005 the cost was $2.85. Assuming the exponential-growth model applies:
(a) Find the exponential-growth rate, and write the equation.
(b) Find the cost of a gallon of gasoline at this station in 2020.
(a) 0.056796 ; 
(b) $6.68
Mathematics
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Find the Taylor series generated by f at x = a.f(x) = 
, a = 3
A. 
B. 
C. 
D. 
Mathematics
Solve the equation algebraically. Verify your solution with a graphing utility.15(9x - 9) = 4x - 3
A. 
B. 
C. 
D. 
Mathematics
Find the future value of the ordinary annuity. Interest is compounded annually, unless otherwise indicated.R = $1000, i = 6.8% interest compounded annually for 11 years
A. $30,323.19 B. $15,617.31 C. $2839.25 D. $13,686.62
Mathematics
Determine the standard equation of the ellipse described.Foci at (-2, 3) and (-8, 3); vertex at (-9, 3).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics