Evaluate: 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-fifth as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Solve the problem.Mara can type 56 words per minute. How many words would she type in 
hour (45 minutes)?
A. 75 words B. 42 words C. 1,890 words D. 2,520 words
Mathematics
Solve the problem.Evaluate 3y - z for y = 0.4 and z = 2.1.
A. 1.6 B. 5.9 C. -0.9 D. 3.3
Mathematics
Find the area between the curves.y = x3, y = x2
A. 
B. 
C. 
D. 
Mathematics