Use of diesel engines diesel engines are popular in cars in


Question: USE OF DIESEL ENGINES Diesel engines are popular in cars in Europe. The percentage of new vehicles in Western Europe equipped with diesel engines is approximated by the function

f(t) = 0.3t4 - 2.58t3 + 8.11t2 - 7.71t + 23.75            (0 ≤ t ≤ 4)

Where t is measured in years, with t 0 corresponding to the beginning of 1996 .

a. Use a graphing utility to sketch the graph of f on [0, 4] × [0, 40].

b. What was the lowest percentage of new vehicles equipped with diesel engines for the period in question?

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Mathematics: Use of diesel engines diesel engines are popular in cars in
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