A Norman window has the shape of a rectangle surmounted by a semicircle (see the accompanying figure). If a Norman window is to have a perimeter of 25 ft, what should its dimensions be in order to allow the maximum amount of light through the window?
?
?
A. 
B. 
C. ?
D. ?
Answer: A
Mathematics
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Multiply the monomial and the polynomial.-9x2y(4x2y4 - 9xy3 + 4)
A. -36x4y5 + 81x3y4 - 36x2y B. -36x4y5 + 81x3y4 - 36 C. -36x2y5 + 81x3y4 - 36x2y D. -36x4y5 - 81x3y4 + 36x2y
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Add and simplify. Write the answer as an improper fraction as needed. 
+ 
A. 
B. 1
C. 
D. 
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Solve the equation.
= 5 - 2x
A. 
B. 
C. {5}
D. 
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Use translations of one of the basic functions to sketch a graph of y = f(x) by hand.y = 
- 9
A. 
B. 
C. 
D. 
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