Solve the problem.How many ways can a class president, a class secretary, and a class treasurer be chosen from a group of 7 candidates?
A. 18
B. 210
C. 840
D. 21
Answer: B
Mathematics
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Evaluate the line integral along the curve C.
ds , C is the curve r(t) = 4ti + (8 cos 
t)j + (8 sin 
t)k , 0 ? t ? 
?
A. 
+ 
B. 
?
C. 
?2 + 
D. 
?2 + 
Mathematics
Solve the given equation by finding the unknown value.41 + 23 = ?
A. 64 B. 62 C. 73 D. 54
Mathematics
Write the number in standard form.Forty-eight thousand, seventeen
A. 47,180 B. 48,017 C. 4,817 D. 48,170
Mathematics
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 2x
B. x
C. 2x
D. 2x
Mathematics