Subtract the fractions. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: C
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Find the local extrema of the function, if they exist.f(x) = 
A. Local minimum at (0, -4) B. No local extrema exist C. Local maximum at (0, -4) D. Local maximum at (0, 4)
Construct a graph for the first ten terms of the sequence.an = 
- 
A. 
B. 
C. 
D. 
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. 15.5 ft B. 19.5 ft C. 17.2 ft D. 23.3 ft
Find the exact solutions to the quadratic equation, using a method of your choice.x2 + 4x + 4 = 0
A. 2 - i, 2 + i B. -2 C. 2 D. -2, 2