Multiply. Simplify the final answer.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Which of the following points represents a 90?counter-clockwise rotation of a line with end-points: (1, 2) and (–8, 9)? ?
A. ?(–2, 1) and (–9, –8) B. (–2, –1) and (–9, 8) C. ??(1, –1) and (–8, 8) D. ??(1, –1) and (–9, 9) E. None of the above.
Mathematics
Write as a percent.0.0068
A. 0.34% B. 0.068% C. 0.00068% D. 0.68%
Mathematics
Determine whether or not the graph is a graph of a function of x.
A. Function B. Not a function
Mathematics
Find the unit tangent vector of the given curve.r(t) = (8 + 2t8)i + (6 + 10t8)j + (4 + 11t8)k
A. T = 
i + 
j + 
k
B. T = 
i + 
j + 
k
C. T = 2i + 10j + 11k
D. T = 
i + 
j + 
k
Mathematics