Use logic to solve the problem.During vacation time, two students met on a train. One asked the other how old he was. He replied, "The day before yesterday I was 15, and next year I will have my 18th birthday." On what date of the year did the two students meet?
A. Feb 29
B. Dec 31
C. Jan 1
D. Feb 28
Answer: C
Mathematics
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Sketch the graph of the polynomial function.f(x) = -x4 - 5 
A. 
B. 
C. 
D. 
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Graph the parabola.(y - 8)2 = 2(x + 1)
A. 
B. 
C. 
D. 
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Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 foot-candles, find the intensity on a screen 20 ft from the light.
A. 1
foot-candles
B. 
foot-candle
C. 
foot-candle
D. 2 foot-candles
Mathematics
Determine the quartiles as specified.The normal annual precipitation (in inches) is given below for 21 different U.S. cities. Find the first quartile.
A. 14.3 in. B. 15.5 in. C. 14.600 in. D. 14.90 in.
Mathematics