Find two positive real numbers whose product is a maximum and whose sum is 160.
A. 
B. 
C. 
D. 
E. 
Answer: C
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Solve the problem.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 28.5 sec B. 9 sec C. 19 sec D. 38 sec
In a small town shopping mall last December, market researchers recorded the top five gifts that children requested while visiting "Santa." The bar graph below shows the number of children who requested each gift. Use the information given by the graph to determine the truth value of the statement.
More than 90 children requested computer games and more children requested dolls than sports equipment.
A. True B. False
Round to the place value indicated.92,155 to the nearest thousand
A. 102,000 B. 92,000 C. 93,000 D. 92,100
A bottle of white wine at room temperature (68°F) is placed in a refrigerator at 3 P.M. Its temperature after t hours is changing at the rate of -18e-0.6t °F/hr. ? By how many degrees will the temperature of the wine have dropped by 12 P.M.? Please round your answer to one decimal place. ?
A. 27.8°F B. 33.1°F C. 29.9°F D. 28.6°F