A bakery makes sweet rolls and donuts. A batch of sweet rolls requires  of flour,  eggs, and  of sugar. A batch of donuts requires  of flour,  eggs, and 

src="https://sciemce.com/media/4/ppg__rrr0625191026__f1q103g6.jpg" alt="" style="vertical-align: -4.0px;" /> of sugar. Set up an initial simplex tableau to maximize profit.The bakery has 270 lb of flour, 220 dozen eggs,  of sugar. The profit on a batch of sweet rolls is  and on a batch of donuts is $9.00.



A.  


B.  


C.


D.  

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Answer: B

Mathematics

Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?

A. 0.438 B. 0.487 C. 0.91 D. 0.856

Multiply and simplify. Assume that all variables represent positive real numbers.( - )

A. 5 + 5
B.
C. 10
D.  - 

Simplify.-1 +  19  - (-6) -  3  + (-13)

A. 2 B. 14 C. -10 D. 8

Solve the problem.The quadratic function  models the median, or average, age, y, at which U.S. men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)

A. 1953, 36 years old B. 1962, 21.8 years old C. 1962, 50.9 years old D. 1936, 50.9 years old