Suppose that of the sons of right-handed fathers, 90% are right-handed and 10% are left-handed. Of the sons of left-handed fathers, 30% are right-handed and 70% are left-handed. (Assume that right-handed and left-handed fathers have sons in equal numbers.) Suppose that in the initial generation all of the fathers are right-handed. What is the percentage of their grandsons that are left-handed?
A. 10%
B. 1%
C. 16%
D. 84%
E. none of these
Answer: C
Mathematics
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A. 
B. 
C. {-3 - 3
, -3 + 3
}
D. 
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A. 2880 min B. 7200 min C. 172,800 min D. 48 min
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A. 
B. 
C. 
D. 
Mathematics
Graph the linear function by plotting the x- and y-intercepts.5x - 25y - 25 = 0
A. intercepts: (0, 5), (-1, 0)
B. intercepts: (0, -5), (1, 0)
C. intercepts: (0, -1), (-5, 0)
D. intercepts: (0, -1), (5, 0)
Mathematics