Perform the indicated operation.
+ 
A. 
B. 
C. a - 2b
D. a + 2b
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 = 8i + 6j , v = i - j
A. 14; -14k B. 2; -2k C. 14; -k D. 2; 2k
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Simplify the expression.-64-4/3
A. 256
B. 
C. - 
D. not a real number
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Find the exact value of y, or state that y is undefined.y = cot-1 
A. 
B. 
C. 0
D. 
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Convert. When necessary, round the answer to two decimal places.9
pounds = ____ ounces
A. 184 B. 94 C. 148 D. 149
Mathematics