Find the unit vector having the same direction as v.v = -2j
A. u = 4j
B. u = -2j
C. u = - 
j
D. u = -j
Answer: D
Mathematics
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Rewrite the statement using the if...then connective. Rearrange the wording or words as necessary.A ship can't sail on land.
A. If this is not land, then a ship can't sail. B. If this is a ship, then it can't sail on land. C. A ship can't sail on land. D. If this is a ship, then it can sail on land.
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Solve.9x4 - 25x2 + 16 = 0
A. ± 
B. ± 
C. ±1, ± 
D. ±1, ± 
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Write each ratio or rate as a fraction in simplest form.$70 to $133
A. $
B. $
C. 
D. 
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Find the radius of the circle, if the diameter is 14. ?
A. 3.5 B. 4.5 C. 7 D. 2.5 E. 28
Mathematics