Perform the indicated operation.
+ 
A. 10
B. 
C. 5
D. -5
Answer: C
Mathematics
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Find the curvature of the curve r(t).r(t) = (2 + cos 3t - sin 3t)i + (7 + sin 3t + cos 3t)j + 10k
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
Find the one-sided limit, if it exists.
?
?
A. 4 B. -2 C. -10 D. 5 E. The limit does not exist
Mathematics
Find the median of the set of numbers.Number of phone calls made each day: 8, 8, 22, 10, 26, 45, 37, 32
A. 23.5 calls B. 26 calls C. 22 calls D. 24 calls
Mathematics
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = -7x4 - 2x3 - 8x2 - 4x + 6
A. 1 positive; 2 negative B. 1 positive; 1 or 3 negative C. 0 or 2 positive; 0 or 2 negative D. 1 positive; 1 negative
Mathematics