Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.05 as soon as you get in the taxi, to which a charge of $1.55 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride, and use this equation to find the cost of a 6-mile taxi ride.
A. $11.23
B. $11.35
C. $12.25
D. $11.53
Answer: B
Mathematics
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Set up an integral for the length of the curve.x = 3 tan y, 0 ? y ? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R(x) = 60x - 0.5x2C(x) = 2x + 6.
A. 59 units B. 64 units C. 62 units D. 58 units
Mathematics
Find the derivative.x8 - 2x7 - 4x3 + x
A. 8x7 - 14x6 - 12x2 + 1 B. x7 - 2x6 - 4x2 + 1 C. 8x9 - 14x8 - 12x4 D. 8x8 - 14x7 - 12x3 + x
Mathematics
Approximate the integral 
using
(a) the Trapezoid rule with n = 6 . (b) Simpson’s rule with n = 6 .
Mathematics