Solve the problem.The graph of f(x) = x4 + x3 - 6x2 - x2 - x + 6 is shown below. Use the graph to factor f(x).
A. f(x) = x(x + 3)(x + 1)(x - 1)(x - 2)
B. f(x) = -(x + 3)(x + 1)(x - 1)(x - 2)
C. f(x) = (x - 3)(x - 1)(x + 1)(x + 2)
D. f(x) = (x + 3)(x + 1)(x - 1)(x - 2)
Answer: D
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Let x represent the unknown, and write an equation for the sentence. Do not solve. When 60% of a number is subtracted from 40, the result is 5 less than the number.
A. 40 - 60x = x - 5 B. 0.6x - 40 = x - 5 C. 40 - 0.6x = x - 5 D. 40 - 0.6x = 5 - x
State how many peaks you would expect for the distribution described.Numbers of people with birthdays in a particular month (January through December)
A. Two B. One C. Three D. None
Solve the problem.At noon, ship A was 15 nautical miles due north of ship B. Ship A was sailing south at 15 knots (nautical miles per hour; a nautical mile is 2000 yards) and continued to do so all day. Ship B was sailing east at 5 knots and continued to do so all day. The visibility was 5 nautical miles. Did the ships ever sight each other?
A. No. The closest they ever got to each other was 5.7 nautical miles. B. No. The closest they ever got to each other was 4.7 nautical miles. C. Yes. They were within 3 nautical miles of each other. D. Yes. They were within 4 nautical miles of each other.
Evaluate f''(c) at the point.f(x) = e4 - x2, c = 2
A. f''(2) = 14 B. f''(2) = -20 C. f''(2) = -4 D. f''(2) = 1