Solve the problem. Use 3.14 to approximate the value of ?. Round to nearest tenth unless instructed differently.The striking circle in field hockey is a semicircle with a radius of 15.9 yd. Find the area of the semicircle.
A. 396.9 yd2
B. 793.8 yd2
C. 99.9 yd2
D. 3175.3 yd2
Answer: A
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Solve the problem.A region in the first quadrant is bounded above by the curve y = tanh x, below by the 
on the left by the 
and on the right by the line 
Find the volume of the solid generated by revolving the region about the x-axis.
A. ?
B. 2?
C. 0
D. - 
Change the number to polar form and then perform the indicated operations. Express the result in rectangular form.(5 - 9j)(9 + 5j)
A. 0 - 106j B. 90 - 56j C. -45j2 - 56j + 45 D. 90 + 56j
Solve.The adult daily dosage for a certain medicine is 100 mg (milligrams) for every 20 pounds of body weight. If the patient weighs 240 pounds and he is to receive a dose of this medicine every 3 hours, find the amount of medicine he should receive in each dose.
A. 3600 mg B. 9600 mg C. 150 mg D. 400 mg
Insert <, >, or = to make the statement true.1.41 
A. > B. < C. =