Find a unit vector that has the same direction as the given vector.u = -9i + 9j
A. -9i + 9j
B. - 
i + 
j
C. - 
i + 
j
D. -9
i + 9
j
Answer: B
Mathematics
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A. 308 B. 1,304 C. 304 D. 306
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Given f (x, y) = cos (e2x+ y ), find f (2, -3)
What will be an ideal response?
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Solve.The population of a town was 25,600 at the beginning of 1970. If the population decreased 250 people per year, how many people lived in the town at the beginning of 1985?
A. 21,850 B. 3750 C. 21,600 D. 22,100
Mathematics
Match the following statements and reasons to complete the proof of:
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Mathematics