Solve the problem.In order to receive a B in a course, it is necessary to get an average of 80% correct on two one-hour exams of 100 points each, on one midterm exam of 200 points, and on one final exam of 500 points. If a student scores 90, and 82 on the one-hour exams, and 140 on the midterm exam, what is the minimum score on the final exam that the person can get and still earn a B?
A. 318
B. 408
C. 453
D. 588
Answer: B
Mathematics
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Simplify the given expression. Expansion of any term is not necessary; proper recognition of the form of the expression leads to the proper result.1 - 2 sin2 2x
A. 
sin 16x
B. cos 8x
C. cos 4x
D. 2 sin 4x
Mathematics
Solve the problem. Use 3.14 for ?.The outfield wall in a baseball park is in the shape of a quarter circle. If the radius of the circle is 6 ft, how long is the wall?
A. 7.42 ft B. 4.71 ft C. 9.42 ft D. 18.84 ft
Mathematics
For the pair of functions, find the indicated composition.f(x) = 3x + 14, g(x) = 3x - 1Find (f ? g)(x).
A. 9x + 41 B. 9x + 13 C. 9x + 11 D. 9x + 17
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics