Solve the following problem in which a radical must be evaluated. The search for a missing person covers a circular region with an area of 204.1 square miles. What is the radius of this region? (Use A = ?r2, let ? ? 3.14). Find an approximation (rounded to the nearest hundredth when necessary), and find the exact value (simplified radical).
A. 7.21 mi; 2
mi
B. 13,266.5 mi; 13
mi
C. 13,266.5 mi; 26
mi
D. 8.06 mi; 
mi
Answer: D
Mathematics
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Translate to a proportion and solve. Round to the nearest hundredth, if necessary.75% of 24 is what number?
A. 18 B. 3.2 C. 180 D. 2
Mathematics
Solve the problem.A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 264 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?
A. 4356 ft2 B. 17,424 ft2 C. 13,068 ft2 D. 8712 ft2
Mathematics
Find the perimeter. Use 3.14 for ? when needed.
A. 30.84 m B. 27.42 m C. 21.42 m D. 18.42 m
Mathematics
Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cos 
A. 
B. - 
C. 
D. - 
Mathematics