Oil production. Assume that the rate in Problem 83 is found to be R ( t ) = 120 t t 2 + 1 + 3 0 ≤ t ≤ 20 (A) When is the rate of production greatest? (B) How many barrels of oil Q ( t ) will the field produce in the first t years if Q (0) = 0? How many barrels will be produced in the first 5 years? (C) How long (to the nearest tenth of a year) will it take to produce a total of a quarter of a million barrels of oil?
Oil production. Assume that the rate in Problem 83 is found to be R ( t ) = 120 t t 2 + 1 + 3 0 ≤ t ≤ 20 (A) When is the rate of production greatest? (B) How many barrels of oil Q ( t ) will the field produce in the first t years if Q (0) = 0? How many barrels will be produced in the first 5 years? (C) How long (to the nearest tenth of a year) will it take to produce a total of a quarter of a million barrels of oil?
Solution Summary: The author explains how the rate of greatest production is calculated by dividing R(t) with respect to t.
During busy political seasons, many opinion polls are conducted. In apresidential race, how do you think the participants in polls are generally selected?Discuss any issues regarding simple random, stratified, systematic, cluster, andconvenience sampling in these polls. What about other types of polls, besides political?
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