Solve the problem.A circle of radius r is inscribed in a square with sides 2r as shown in the figure. Express the shaded area in terms of r and ? as a completely factored polynomial.
A. 
(4 - r)
B. 
(2 + ?)(2 - ?)
C. 
(2-?)2
D. 
(4 - ?)
Answer: D
Mathematics
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R
= 6xC
= 0.01x2 + 1.1x + 40.
A. 355 units B. 490 units C. 245 units D. 710 units
Mathematics
Compute the range for the set of data.3, 3, 3, 20, 29, 29, 29
A. 171.3 B. 26 C. 16.6 D. 20
Mathematics
Find the average value of the function over the given interval.y = 5 - x2; [-2, 3]
A. - 
B. 
C. - 
D. 
Mathematics
Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. m B. l C. l, m, and n D. l and m
Mathematics