Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.The striking circle in field hockey is a semicircle with a radius of 15.5 yd. Find the area of the semicircle.
A. 754.4 yd2
B. 3017.5 yd2
C. 97.3 yd2
D. 377.2 yd2
Answer: D
Mathematics
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Evaluate the expression.
A. 12 B. 6 C. 24 D. undefined
Mathematics
Find the maximum and minimum of the function f over the closed and bounded set S.f(x, y) = x + y + 88; S = {(x, y): x2 + y2 ? 1}
A. f(0, 0) = 88; maximum. No minimum.
B. f(
, 
) = (88 + 
); maximum. f(- 
, - 
) = (88 - 
); minimum.
C. f(0, 0) = 88; minimum. No maximum.
D. f(- 
, - 
) = (88 + 
); maximum. f(
, 
) = (88 - 
); minimum.
Mathematics
Provide an appropriate response.Give the reciprocal of 9.
A. - 
B. 
C. -9
D. 
Mathematics
Use a percent proportion to solve the percent problem.135% of what number is 54?
A. 40 B. 182.25 C. 400 D. 18,225
Mathematics