Determine whether the relation is a function.{(-6, -7), (-6, 9), (-1, -9), (3, 4), (9, 4)}
A. Function
B. Not a function
Answer: B
Mathematics
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Verify the integration formula.
x tanh-1 x + 
ln (1 - x2)+ C
A. No B. Yes
Mathematics
Fill in the missing value.548 mm = cm
A. 5.5 B. 54,800 C. 54.8 D. 5480
Mathematics
Tell whether or not the relation is a function.{(-8, 1), (-3, 8), (-2, -8), (3, -4)}
A. Yes B. No
Mathematics
Solve.Amy teaches Chinese lessons for $65 per student for a 6-week session. From one group of students, she collects $1690. Find how many students are in the group.
A. 26 students B. 16 students C. 30 students D. 28 students
Mathematics