Use the given transformation to evaluate the integral.   where R is the parallelogram bounded by the lines    

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A. -10
B. 10
C. -5
D. 5

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Answer: D

Mathematics

Solve. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.Write the equivalent decimal and percent for .

A. 0.665; 665% B. 0.545; 5.45% C. 0.545; 54.5% D. 0.665; 66.5%

Solve the problem.A fair coin is tossed three times. Which of the following describes the sample space for this random experiment?

A. {3 H's, 2 H's and 1 T, 1 H and 2 T's, 3 T's} B. {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT} C. {HHH, TTT} D. {H, T} E. none of these

Multiply. Write the answer in lowest terms. ? 

A.  
B.
C.  
D.  

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the approximate number of bulbs that can be expected to last the specified period of time.Less than 500 hours

A. 3000 B. 2500 C. 1000 D. 2400