Solve the problem.Two vertical poles of lengths 20 feet and 32 feet are situated on level ground 50 feet apart, as shown in the figure below. A piece of wire is to be strung from the top of the 20-ft pole, to a stake in the ground, to the top of the 32-ft pole. At what distance from the 20-foot pole should the stake be located to minimize the amount of wire used? Round your answer to the nearest tenth of a foot.20 ft
32 ft? 50 ft
A. 19.5 ft
B. 23.3 ft
C. 15.5 ft
D. 17.2 ft
Answer: A
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Answer the following statement true (T) or false (F)
The scores on a 30-point multiple-choice exam are given in the following frequency table:
The range on the exam is
A. 7. B. 10. C. 9. D. 8. E. none of these
You are given a graph of a function of the form f(x) = ax2 + bx + c for different values of a, b, and c. For this function,a. Determine whether the discriminant is positive, negative, or zero.b. Determine if there are 0, 1, or 2 real solutions to f(x) = 0.c. Solve the equation f(x) = 0.
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