Use the method of successive differences to determine the next term in the sequence.2, 19, 55, 112, 192, 297, . . .
A. 427
B. 429
C. 448
D. 431
Answer: B
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Provide an appropriate response.The roots of 
- x = 7 are
A. -4 only B. -4 and -9 only C. -4 and 9 only D. 4 only E. -9 only
Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 200e-0.227t, where t is the time in years? Round to the nearest hundredth year.
A. 23.34 yr B. 3.05 yr C. 45.40 yr D. 26.39 yr
Rewrite the series using summation notation. Use 1 as the lower limit of summation.6 + 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
A manufacturing company wants to maximize profits on products A, B, and C. The profit margin is $3 for A, $6 for B, and $15 for C. The production requirements and departmental capacities are as follows: 
What is the constraint for the assembling department?
A. 2A + 3B + 2B ? 38,000 B. 2A + 3B + 2C ? 30,000 C. 2A + 3B + 2C ? 28,000 D. A + 2B + 3C ? 30,000