Simplify the expression.
2
A. 
B. 1
C. 2
D. 
Answer: D
Mathematics
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Solve the problem.Find the radian measure of the central angle ? which intercepts a 71.5 cm arc in a circle of radius 13 cm. Round to one decimal place, if necessary.
A. 6 radians B. 0.1 radians C. 5 radians D. 5.5 radians
Mathematics
Add or subtract.
+ 
A. - 
B. - 
C. - 
D. - 
Mathematics
Solve the problem.39.5% of the students at a certain college are male. If the total number of students at the college is 3400, how many female students are there?
A. 2057 students B. 1343 students C. 2077 students D. 1700 students
Mathematics
Solve the equation.3n - 4 = 11
A. 12 B. 7 C. 5 D. 16
Mathematics