Find the unit vector having the same direction as v.v = 12i - 5j
A. u = 
i - 
j
B. u = 156i - 65j
C. u = 
i - 
j
D. u = 
i - 
j
Answer: D
Mathematics
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A. ?Drawing a ray with a straightedge. B. ?Using a compass to measure the length a line AB. C. ?Using a compass to measure the angle between line AB and ray C. D. ?Using line AB to copy ray C. E. ?None of the above.
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Rewrite using exponential notation. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.
A. 
B. 
C. 
D. 
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Perform the indicated operation.2.79 kg ÷ 6
A. 0.465 kg B. 0.22 kg C. 2.15 kg D. 46.5 kg
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Multiply.(x - 1)(x2 + x + 1)
A. x3 - 1 B. x3 + 2x2 + 2x + 1 C. x3 - 2x2 - 2x - 1 D. x3 + 1
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