Find the expression.u = 3i - 2j, v = -9i + 7jFind u - v.

A. 10i + 5j
B. -6i + 5j
C. 11i + 5j
D. 12i - 9j

Answer: D

Mathematics

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Graph the equation. Identify the coordinates of the vertex.y = x2 + 4x - 7

A. (-2, -11)
B. (-2, 3)
C.
D. (4, 0)

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Find the derivative.w = z-5 - 

A. -5z-6 + 
B. 5z-6 - 
C. z-6 + 
D. -5z-6 - 

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Determine the magnitude of v.

A. 22 
B. 88 
C. 88
D. 5 

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Determine whether the relation is a function.{(-7, 3), (-7, -4), (2, -4), (5, -5), (10, 9)}

A. No B. Yes

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