Find the vector projv u.v = 7i - 3j + k, u = -4j + 3k

A. - j + k
B. i - j + k
C. - j + k
D. i - j + k

Answer: B

Mathematics

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Match the given equation with one of the graphs.y2 = 4x

A.

B.


C.



D.

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Factor by grouping.ra2 + rb2 - 8a2 - 8b2 

A. (a2 - b2)(r + 8) B. (a2 - 8)(r + b2) C. (a2 + 8b2)(r - 1) D. (a2 + b2)(r - 8)

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Mathematics

If possible, solve the system of equations. Use any method. If there is not a unique solution to a system, say why.2x - 6y = 5-12y = 10 - 4x

A. (2, -6) B. (0, 0) C. Infinite number of solutions; dependent equations D. No solution; inconsistent system of equations

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Mathematics

Solve the problem.Tim needs to apply 2 gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 388 acres?

A. 194 gallons
B. 196 gallons
C. 155 gallons
D. 970 gallons

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Mathematics