Find the product of the complex number and its conjugate.4 + 2i

A. 16 + 4i
B. 12
C. 20
D. 16 - 4i


Answer: C

Mathematics

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Estimate the slope of the curve at the indicated point.

A. Undefined B. 1 C. -1 D. 0

Mathematics

Answer the question about rigid motions.For two-dimensional objects moving in a plane, there are four possible rigid motions. Reflections and rotations are two of the possibilities. What are the other two types of rigid motions?

A. translations and glide reflections B. glide reflections and rotary reflections C. translations and screw displacements D. translations and rotary reflections E. glide reflections and screw displacements

Mathematics

Find the reciprocal.

A. 0
B.
C. 20
D. 1

Mathematics

Find a unit vector that has the same direction as the given vector.u = 

A.
B.
C.
D.

Mathematics