Refer to the double-bar graph below which shows the number of male (M) and female (F) athletes at a university over a four-year period. Solve the problem. 
YEARHow many more male athletes than female athletes were there in 1989?
A. 100
B. 150
C. 0
D. 50
Answer: B
Mathematics
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Use the graph to obtain the graph of the reciprocal function. Give the equation of the function for the graph that you obtain.y = -3 sin 2x
A. y = 3 sec 
B. y = -3 sec 2x
C. y = 3 csc 
D. y = -3 csc 2x
Mathematics
Simplify.(4-1x-2y)-2
A. 
B. 
C. 
D. 16x4y2
Mathematics
State whether the matrix is in reduced form or not in reduced form.
A. Reduced Form B. Not Reduced Form
Mathematics
Solve using the quadratic formula: 
A. 
B. 
C. 
D. none of these
Mathematics