Fredfredburger wrote:Regional #55
The complex numbers w=2+5i and z=3-4i are graphed as vectors. What is the measure of the angle formed between them? Ans: 121.3°
Fredfredburger wrote:State #29
Roland Cubes tossed a fair die three times. What is the probability that the face with six dots comes up at least two times?
Mr. White and his dog, Lady, try to speed walk 2 miles each day when the weather permits. The following table shows Mr. White's speed for each half mile walked. Find Mr. White's average walking speed.
Distance Walking speed
First 1/2 mile 4.3 mph
Second 1/2 mile 3.0 mph
Third 1/2 mile 3.3 mph
Fourth 1/2 mile 2.7 mph
Ans: 3.30 mph
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