Perform the operation indicated. Simplify.
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve.A carpenter wants to cut the largest possible ellipse from a 8 ft by 10 ft rectangular board. After the foci are located, a string is connected to them and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 8 ft B. 20 ft C. 10 ft D. 16 ft
Mathematics
Determine whether the function is a solution of the wave equation.w = sin(10x + 10ct)
A. Yes B. No
Mathematics
Find the value of k so that the equation will have exactly one rational solution.49x2 + kx + 64 = 0
A. 56 or -56 B. 112 C. 112 or -112 D. -112
Mathematics
Find the area.
A. 
m2
B. 
m2
C. 
m2
D. 
m2
Mathematics