Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A 41-in. piece of string is cut into two pieces. One piece is used to form a circle and the other to form a square. How should the string be cut so that the sum of the areas is a minimum? Round to the nearest tenth, if necessary.
A. Square piece = 10.1 in., circle piece = 9.7 in. B. Square piece = 0 in., circle piece = 41 in. C. Circle piece = 9.9 in., square piece = 31.1 in. D. Square piece = 9.9 in., circle piece = 31.1 in.
Find the absolute maxima and minima of the function on the given domain.
on the diamond-shaped region 
A. Absolute maximum: 
at 
and 
absolute minimum: 0 at 
B. Absolute maximum: 18 at 
and 
absolute minimum: 0 at 
C. Absolute maximum: 
at 
and 
absolute minimum: 0 at 
and 
D. Absolute maximum: 
at 
and 
absolute minimum: 18 at 
and 
Find the square root. When necessary, round to nearest thousandth.
A. 5.359 B. 4.359 C. 4.358 D. 4.369
Identify the equation without applying a rotation of axes.3x2 + 3xy + 3y2 + 3x + 3y + 10 = 0
A. hyperbola B. ellipse C. parabola D. not a conic