Solve.A lottery game contains 21 balls numbered 1 through 21. What is the probability of choosing a ball numbered 22?
A. 
B. 0
C. 1
D. 21
Answer: B
Mathematics
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Use the integral test to determine whether the series converges.
A. converges B. diverges
Mathematics
Solve the system of equations using substitution.
A. x = -5, y = -1; x = 8, y = 
or (-5, -1), 
B. x = 5, y = 1; x = -8, y = - 
or (5, 1), 
C. x = 5, y = 1; x = - 
, y = -8
or (5, 1), 
D. x = -5, y = -1; x = 
, y = 8
or (-5, -1), 
Mathematics
Use a Taylor series to evaluate the function.sin 27.45°
A. 0.46195 B. 0.53904 C. 0.46096 D. 0.53805
Mathematics
Use an Euler diagram to determine whether the syllogism is valid or invalid.Students who study get better grades.Roger is a student who studies. ? Roger will get better grades.
A. Invalid B. Valid
Mathematics