Solve the problem.If v = 3i - 5j  and w = -7i + 4j, find 3v - 4w.

A. 17i - 10j
B. -4i - j
C. -19i + j
D. 37i - 31j


Answer: D

Mathematics

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Find all the local maxima, local minima, and saddle points of the function.

A. f(0, 0) = 0, local minimum B. f(7, 10) = 17,301, saddle point; f(10, 7) = 14,700, saddle point C. f(70, 70) = 882,000, local maximum; f(0, 0) = 0, local minimum D. f(70, 70) = 882,000, local maximum

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Perform the indicated operation.Evaluate .

A. 0.01234568 B. 81 C. 243 D. 27

Mathematics

Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = 5x2 + 10x - 4 

A.

B.

C.

D.

Mathematics

Vector W is in standard position, and makes an angle of  with the positive x-axis. Its magnitude is 7. Write W in component form  and in vector component form

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?

A. ?
B. ?
C.
D. ?
E. ?

Mathematics