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 15.0 yd. Find the area of the semicircle.
A. 353.3 yd2
B. 94.2 yd2
C. 706.5 yd2
D. 2826 yd2
Answer: A
Mathematics
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Multiply. Simplify if possible.
? 
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set. x + y = 45x + 5y = 20
A. {(5, -1)} B. Cramer's rule does not apply since D = 0; ? C. Cramer's rule does not apply since D = 0; {(4 - y, y)} D. {(0, 0)}
Mathematics
Simplify the complex fraction using Method 2.
A. 
B. 
C. k - 6
D. 
Mathematics
Determine whether the following is a probability model.
A. Yes B. No
Mathematics