As part of a study, 800 college football players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 235 pounds and the standard deviation is 25 pounds.Of the 800 players approximately how many weighed 210 pounds or less?
A. 128
B. 200
C. 64
D. 544
E. none of these
Answer: A
Mathematics
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Solve.x2 + x + 2 = 0
A. - 
± 
B. - 
± 
i
C. 
± 
i
D. 
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Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.x4 + 2x2 - 35
A. (x2 + 5)(x2 + 1) B. (x2 - 5)(x2 + 7) C. (x2 + 5)(x2 + 7) D. Prime
Mathematics
Solve.8x - 6 = 64 - 6x
A. 29 B. 35 C. -5 D. 5
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Find the equation of the line tangent to the graph of the function at the indicated point.f(x) = x2 - 1 at (-3, 8)
A. y = -6x - 19 B. y = -6x - 10 C. y = -6x - 20 D. y = -3x - 10
Mathematics