Solve the problem.A rectangular board is 2 ft by 12 ft. How far from the center of the board should the foci be located in order to cut the largest elliptical tabletop from the board?
A. 0.1 ft
B. 1.0 ft
C. 5.0 ft
D. 5.9 ft
Answer: D
Mathematics
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Find an equation of the line satisfying the following conditions. If possible, write the equation in slope-intercept form. Horizontal, passing through (2.19, -5.83)
A. x = -5.83 B. y = 2.19 C. y = -5.83 D. x = 2.19
Mathematics
Solve the problem.Assume that the probability is 
that a child born is a boy. What is the probability that both of a family's two children are girls?
A. 
B. 
C. 
D. 
Mathematics
Factor completely. If a polynomial cannot be factored, say it is prime.x2 - 9x + 81
A. prime B. (x - 9)2 C. (x + 9)(x - 9) D. (x + 9)2
Mathematics
Write sigma notation.9 + 27 + 81 + 243 + 729
A. 
B. 
C. 
D. 
Mathematics