Simplify.2.7 ? 17.6 + 12.1 ? 19.1
A. 1138.7
B. 671.5
C. 1531.6
D. 278.63
Answer: D
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = - 
i + 
j + k, v = i + j + 2k
A. 2
; 
i + 
j - 
k
B. 8; 
i - 
j - 
k
C. 8; 
i - 
j + 
k
D. 2
; - 
i + 
j - 
k
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Evaluate the function for the given value.Find f(1 + 6t) when f(x) = 15.
A. 91 B. 15 + 90t C. 15 + 6t D. 15
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Find the term indicated in the expansion.(2x + 3)5; 5th term
A. 270x B. 1215 C. 810x D. 540x2
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Find different polar coordinates (r, ?) for the same point under the given conditions.
, r > 0 and -2? < ? < 0
A. 
B. 
C. 
D. 
Mathematics