Simplify. + 

A.
B.
C.
D.


Answer: A

Mathematics

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Perform the indicated operations graphically.(-4 + j ) - (-2 - 3j )

A.

a = -4 + j
b = 2 + 3j
c = (-4 + j ) - (-2 - 3j )
B.

a = -4 + j
b = 2 + 3j
c = (-4 + j ) - (-2 - 3j )
C.

a = -4 + j
b = 2 + 3j
c = (-4 + j ) - (-2 - 3j )
D.

a = -4 + j
b = 2 + 3j
c = (-4 + j ) - (-2 - 3j )

Mathematics

Show the result of the moves on Rubik's cube U3. Remember that R, F, L, B, T, and U mean rotate 90° clockwise the right, front, left, back, top, and under faces, respectively. Use the standard Rubik's cube shown below as your starting point. Consider each clockwise rotation by first turning the cube so that the side you are rotating is facing you. ? ?

A.
B.
C.
D.
E.

Mathematics

Expand the expression using the Binomial Theorem.(x2 - 2y)4

A. x8 - 8x6y + 24x4y2 - 32x2y3 + 16y4 B. x4 - 8x3y + 24x2y2 - 32xy3 + 16y4 C. x8 - 8x6y + 24x4y2 + 8x2y3 + 16y4 D. x8 - 2x6y + 24x4y2 - 16x2y3 + 16y4

Mathematics

Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed:   What is the probability that a student has at most 2 siblings?

A. 0.24 B. 0.76 C. 0.41 D. 0.59

Mathematics