Solve the problem.A rectangular board is 6 ft by 10 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? Round your answer to the nearest tenth.
A. 3.0 ft
B. 2.0 ft
C. 1.0 ft
D. 4.0 ft
Answer: D
Mathematics
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Solve the problem.A nail 6
inches long is driven into a board 
thick. How much of the nail protrudes from the other side of the board?
A. 9
in.
B. 1
in.
C. 5
in.
D. 
in.
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(9x10y-16)1/2
A. 
B. 
C. 
D. 3x5y8
Mathematics
Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if cos ? = 
, then find the value of sec ?.
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Express your answer using interval notation. Graph the solution set.7 ? 4x - 5 ? 19
A. (-6, -3)
B. (3, 6)
C. [3, 6]
D. [-6, -3]
Mathematics