Let f(x) = 8x2 - 5x and g(x) = 7x + 9.Find the composite.g[f(-3)]
A. 1212
B. 408
C. 7050
D. 618
Answer: D
Mathematics
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Find y '.y = (2x - 6)(6x + 1)
A. 24x - 38 B. 12x - 34 C. 24x - 17 D. 24x - 34
Mathematics
A plane can fly 260 miles in the same time as it takes a car to go 110 miles. If the car travels 90 mph slower than the plane, find the speed of the plane.
A. 116 mph B. 146 mph C. 126 mph D. 156 mph E. 136 mph
Mathematics
Add.- 
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A. 
B. 
C. 
D. 
Mathematics
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.40 as soon as you get in the taxi, to which a charge of $1.80 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 2-mile taxi ride.
A. $6.90 B. $6.00 C. $5.88 D. $6.18
Mathematics