Use the vertex to solve the application problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is the cost in dollars, and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 87 watches
B. 28 watches
C. 40 watches
D. 43 watches
Answer: B
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Four heirs (A, B, C, and D) must divide fairly an estate consisting of three items - a house, a cabin and a boat - using the method of sealed bids. The players' bids (in dollars) are:
The original fair share of player C is worth
A. $64,000. B. $65,500. C. $18,000. D. $62,000. E. none of these
Solve the problem.A data-recording thermometer recorded the soil temperature in a field every 2 hours from noon to midnight, as shown in the following table. Use the Trapezoidal Rule to estimate the average temperature for the 12-hour period.
A. 79.00°F B. 67.94°F C. 81.50°F D. 67.92°F
List the outcomes of the sample space.A box contains 10 red cards numbered 1 through 10. List the sample space of picking one card from the box.
A. {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} B. {100} C. {10} D. {1, 10}
Solve.A projectile moves so that its position at any time t is given by the equations x = 24t and 
for t in [0, 13]. Graph the path of the projectile. 
A. 
B. 
C. 
D. 