Solve the problem.Find the equilibrium point for the given supply and demand functions. Here p represents price and x represents quantity.
A. (71, $155)
B. (-394, $846)
C. (841, $397)
D. (155, $71)
Answer: D
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Find a1, d, an, n, or Sn for the arithmetic sequence, as instructed.a1 = 0.1, an = -4.9, Sn = -19.2; Find n.
A. 10 B. 13 C. 7 D. 8
Solve the problem.A woman can sell her computer graphics company for $900,000 cash or for $100,000 plus $65,000 at the end of each year for 4 years. (a) Find the present value of the annuity that is offered if money is worth 7% compounded annually. (b) If she takes the $900,000, spends $100,000 of it, and invests the rest in a 4-year annuity at 7% compounded annually, what size annuity payment will she receive at the end of each year? (c) Which is better, taking the $100,000 and the annuity or taking the cash settlement?
A. (a) $297,227.79; (b) $265,705.31; (c) $100,000 plus the annuity has a larger present value than $900,000. She should take $100,000 plus the annuity. B. (a) $217,967.04; (b) $206,659.68; (c) $100,000 plus the annuity has a smaller present value than $900,000. She should take the cash settlement. C. (a) $330,253.10; (b) $295,228.12; (c) $100,000 plus the annuity has a larger present value than $900,000. She should take $100,000 plus the annuity. D. (a) $220,168.73; (b) $236,182.49; (c) $100,000 plus the annuity has a smaller present value than $900,000. She should take the cash settlement.
Perform the indicated operation.
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A. 
B. 
C. 
D. 
Solve the problem.The height h of a ball thrown is given by 
, where x is the horizontal distance traveled and both measurements are in feet. At what horizontal distances will the height of the ball be more than 
(Round distances to the nearest tenth of a foot, if necessary.)
A. 5.9 ft < x < 25 ft B. 5.9 ft < x < 19.1 ft C. 0 ft < x < 5.9 ft or 19.1 ft < x < 25 ft D. 0 ft < x < 19.1 ft