Find a? b.a = 6j,  b = i + 4j

A.
B.
C. -24
D. 24


Answer: D

Mathematics

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Construct a truth table for the statement.~(p ? q) ? ~(p ? q)

A.

TTT
TFT
FTT
FFT

B.
TTF
TFT
FTT
FFT

C.
TTT
TFF
FTF
FFT

D.
TTF
TFF
FTF
FFT

Mathematics

Sketch the given surface.z = x2 + 4y2

What will be an ideal response?

Mathematics

The graph of a quadratic function is given. Find the standard form of the function

A. f(x) = -(x - 3)2 - 2 B. f(x) = -(x + 3)2 + 2 C. f(x) = (x + 3)2 - 2 D. f(x) = -(x + 3)2 - 2

Mathematics

Solve using artificial variables.Maximizez = 4x1 + 6x2subject to:2x1 + x2 = 12 2x1 + 2x2 ? 20 2x1 + 2x2 ? 24 x1 ? 0, x2 ? 0

A. Maximum is 72 for x1 = 0, x2 = 12 B. Maximum is 48 for x1 = 12, x2 = 0 C. Maximum is 68 for x1 = 2, x2 = 10 D. Maximum is 56 for x1 = 2, x2 = 8

Mathematics