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Dennis_Churaev [7]
3 years ago
9

If X and Y are supplementary angles then is y acute

Mathematics
1 answer:
xxMikexx [17]3 years ago
4 0
Supplementay means adds to 180
x and y could be 100 and 80
x and y could be 1 and 179

acute means that it is less than 90


since we are not told what x or y is, y could or could not be acute
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Someome please help me
MrRa [10]

Answer:

Step-by-step explanation:

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3 years ago
Sam colors each tile in a 4 by 4 grid white or black. A coloring is called rotationally
DiKsa [7]

Answer:

  65,280

Step-by-step explanation:

Consider the 4×4 grid ...

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The same will be true of 270° rotational symmetry, for the same reason.

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For 180° rotational symmetry, we must have c=a'' and d=b''. Then the combination of "a" and "b" together fully determines the grid. Together, "a" and "b" consist of 8 tiles, so there are 2^8 = 256 ways to pattern the grid so it will have 180° rotational symmetry. (Of those, 16 have 90° symmetry, and 16 have 270° symmetry. The sets are overlapping.)

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The 16 tiles of the grid can be colored 2^16 = 65,536 different ways. As we have seen, 256 of those colorings result in 180° rotational symmetry. Then the number of colorings that have no rotational symmetry is ...

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Svetach [21]

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Masteriza [31]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
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