Evaluate the integral using the given substitution.
dx, u = 2x2
A. sin(2x2) + C
B. 
sin (u) + C
C. 
sin (2x2) + C
D. 
sin (2x2) + C
Answer: C
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Rationalize the denominator. Assume variables represent non-negative values.
A. 8
B. 
C. 537
D. 
Solve the problem.Suppose that the accompanying table shows the velocity of a car every second for 8 seconds. Use the Trapezoidal Rule to approximate the distance traveled by the car in the 8 seconds. Round your answer to the nearest tenth if necessary.
A. 198 ft B. 177.5 ft C. 269.5 ft D. 355 ft
Estimate the product by rounding each number.6.32 × 5.03
A. 300 B. 3 C. 30 D. 42
Solve the problem.A special-events promoter sells x tickets and has a marginal-profit function given by P'(x) = 2x - 1200, where P'(x) is in dollars per ticket.This means that the rate of change of total profit with respect to the number of tickets sold, x, is P'(x). Find the total profit from the sale of the first 340 tickets.
A. $115,600 B. -$292,400 C. -$584,800 D. $427,600