Find the length and direction (when defined) of u × v.u = 4i + 2j + 8k, v = -i - 2j - 2k
A. 180; 
i + 
j + 
k
B. 6
; 
i - 
k
C. 180; 
i + 
k
D. 6
; 
i + 
k
Answer: B
Mathematics
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A. True B. False
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Provide an appropriate response.Bob drives 300 miles in 5 hours. Explain the significance of the ratio of 300 to 5. What units associated to this ratio?
What will be an ideal response?
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What kind of angle is ?CBD?
(a) obtuse
(b) acute
(c) equilangular
(d) right
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Solve.Amy can clean the house in 8 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 8
hr
B. 8 hr
C. 4 hr
D. 9hr
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