Evaluate the iterated integral.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.A certain suspension cable with supports on the same level is closely approximated as being parabolic in shape. If the supports are 190 ft apart and the sag at the center is 30 ft, what is the equation of the line along which the tension acts (tangentially) at the right support? (Choose the origin of the coordinate system at the lowest point of the cable.)
A. 12x - 19y + 570 = 0 B. 12x + 19y + 570 = 0 C. 12x + 19y - 570 = 0 D. 12x - 19y - 570 = 0
Evaluate the expression for the given value or values.4x2 + 7x + 5 for x = -2
A. 3 B. -25 C. 35 D. 7
Rewrite the statement so the inequality symbol points in the opposite direction.40 < 49
A. 40 > 49 B. 49 > 40 C. 49 < 40 D. 49 ? 40
Solve the problem. First use front end rounding. Then find the exact answer.Find the total amount Lisa stashed in an envelope on her dresser if she placed $485 there at the end of each week, for 3 weeks.
A. Estimate: $1500; exact: $1470 B. Estimate: $1470; exact: $1455 C. Estimate: $1470; exact: $1470 D. Estimate: $1500; exact: $1455