Decompose v with respect to w.v = 
, w = j
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Answer: D
Mathematics
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Find the acceleration vector in terms of ur and u?.r = 2 cos 2t and ? = 4t
A. a = (-40 sin 2t)ur - 32 cos 2tu? B. a = (-40 cos 2t)ur + 32 sin 2tu? C. a = (-40 cos 2t)ur - 32 sin 2tu? D. a = (-40 cos 4t)ur - 32 sin 4tu?
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A. -9r - 15 B. -45r C. -9r + 10 D. 2r + 7
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Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.01
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Mathematics