Solve the problem. Use 3.14 for ?. Round your answer to the nearest hundredth.The striking circle in field hockey is a semicircle with a radius of 15.7 yd. Find the area of the semicircle.
A. 98.6 yd2
B. 774.0 yd2
C. 387.0 yd2
D. 3095.9 yd2
Answer: C
Mathematics
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Find the equation for the level surface of the function through the given point.f(x, y, z) = 
, (3, 6, 4)
A. 
= 
B. 
= 
C. The level surfaces cannot be determined.
D. 
= 
Mathematics
Write the equation of the line that satisfies the given conditions. Express the final equation in standard form.contains the point (–1, 5) and is perpendicular to the line 6x + 7y = –6
A. 7x - 6y = –37 B. 7x - 6y = 23 C. 7x + 6y = –37 D. x - 6y = 23 E. 7x + 6y = 23
Mathematics
Evaluate.5 sin2 300° + csc2 150° - sec2 30°
A. 
B. 
C. 
D. 
Mathematics
Divide to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.2
÷ 1
A. 1
B. 1
C. 2
D. 1
Mathematics