Find the inverse, if it exists, of the given matrix.A = 
A. 
B. 
C. 
D. 
Answer: C
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Which of the following does not occur in tessellations? ?
A. ?A regular polygon tessellates about a point. B. ?An equilateral triangle tessellates about a point. C. ?A square tessellates about a point because 4 rotations of 90? completes the tessellation. D. ?A regular hexagon tessellates about a point because 3 rotations of 120? completes the tessellation. E. ?There are no other regular polygons with sides greater than 6 which tessellate.
Subtract.7 - 
A. - 16
B. - 5
C. 
D. 8
Find all solutions of the equation. Leave answers in trigonometric form.x2 - i = 0
A. {cis 45°, cis 225°} B. {cis 315°, cis 135°} C. {cis 270°, cis 90°} D. {cis 180°, cis 0°}
Simplify using the power-to-power rule.[(-3)4]3
A. 531,441 B. -531,441 C. 2187 D. -2187