Find the magnitude and direction angle for the following vector. Give the direction angle as an angle in [0°, 360°) rounded to the nearest tenth.
A. 
, 353.7°
B. 
, 96.3°
C. 
, 173.7°
D. 
, 276.3°
Answer: A
Mathematics
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A.
?
B.
?
C.
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D.
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E.
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Write a numerical expression for the phrase and simplify it.The quotient of -180 and the sum of 8 and 12
A. -180 + 8 + 12; -160
B. 
; 9
C. 
; - 
D. 
; -9
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A. 150 points. B. 50 points C. 30 points D. 90 points. E. none of these
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Find the prime factorization of the number.80
A. 2 ? 2 ? 2 ? 2? 5 ? 5 B. 2 ? 2 ? 2 ? 5 ? 5 C. 2 ? 2 ? 2 ? 2 ? 5 D. 2 ? 2 ? 2 ? 5
Mathematics