Find all of the real zeros of the function. Give exact values whenever possible. Identify each zero as rational or irrational.f(x) = x3 - 2x2 - 6x + 12

A. 2 (rational), 2 (irrational), and -2 (irrational)
B. -2 (rational),  (irrational), and - (irrational)
C. 2 (rational),  (irrational), and - (irrational)
D. 2 (rational), 6 (rational), and -6 (rational)


Answer: C

Mathematics

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Use the table(s) to evaluate the given expression.f -1(3)

A. 8 B. 3 C. 6 D. -1

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Solve the problem.How long would it take to drive a distance of 35 miles if you drive at a constant speed of 59 miles per hour? Round to the nearest hundredth if necessary. (Distance = Speed × Time)

A. 1.69 hours B. 0.59 hours C. 2065.0 hours D. 5.93 hours

Mathematics

Solve the problem.The percentage of Americans owning a car with a cassette tape player during particular years is given in the following table:Let t be the number of years since 1992. Find a linear function, f(t), for the line containing the points  and . Find P(9). What does this situation mean?

A. f(9) = 44.2. In 2001, 44.2% of the population owned a car without a cassette player. B. f(9) = 44.2. In 2001, 44.2% of the population owned a car with a cassette player. C. f(9) = 42.4. In 2001, 42.4% of the population owned a car with a cassette player. D. f(9) = 42.4. In 2001, 57.6% of the population owned a car with a cassette player.

Mathematics

Show that the equation is not an identity by listing the value(s) of the variable from among 0, ?/4, ?/2, and - ?/4 for which the equation is false.(tan ? + 1)2 = sec2 ?

A. , and 0
B. , and - 
C.  and - 
D.  and 0

Mathematics