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.
Answer: A
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Find the product of the polynomials.(x2 + x + 6)(x2 + x + 8)
A. x4 + 2x3 - 14x2 - 2x + 48 B. x4 + x3 + 14x2 + 14x + 48 C. x4 + x3 - 13x2 - 14x + 48 D. x4 + 2x3 + 15x2 + 14x + 48
Solve the equation.
- 
= 
A. -9
B. -27
C. 9
D. 
Add.12 + (-22) + 19 + (-13)
A. -42 B. 66 C. -16 D. -4
Find the mode, if it exists, for the given values.511, 432, 255, 510, 511, 757, 432, 338, 511, 432
A. 511 B. 432, 511 C. 432 D. none