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. 
(4 - ?)
C. 
(2-?)2
D. 
(2 + ?)(2 - ?)
Answer: B
Mathematics
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= 12 and dx/dt = 8, then what is dy/dt when x = 15 and y = 3?
A. - 
B. 
C. - 
D. 
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Add or subtract as indicated and write the result in standard form.6i - (-4 - i)
A. 4 - 5i B. -4 - 7i C. 4 + 7i D. -4 + 5i
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Identify the two types of control discussed in the text and how each contributes to organization effectiveness.
What will be an ideal response?
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Divide.
(Round to the nearest thousandths when necessary.)
A. 158.687 B. 159.187 C. 15.919 D. 15.869
Mathematics