Solve the problem.In a microbiology class of 37 students, 23 students are graduate students. What fraction of the students are graduate students?
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.An object is traveling around a circle with a radius of 10 centimeters. If in 20 seconds a central angle of 
radian is swept out, what is the linear speed of the object?
A. 
cm/sec
B. 6 cm/sec
C. 6 radians/sec
D. 
radians/sec
Find the derivative of the function.
f (x) = 2 cos x ? 2x ? 8
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. y-intercept = -2; perpendicular to the line 4x + 3y = -3
A. 3x - 4y = -6 B. 3x - 4y = 8 C. 4x + 3y = -8 D. 4x + 3y = -6
Solve the problem.Two ships leave a harbor together traveling on courses that have an angle of 120° between them. If they each travel 514 miles, how far apart are they to the nearest mile?
A. 39 mi B. 890 mi C. 1780 mi D. 514 mi