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Arisa [49]
2 years ago
14

Can someone help me with this please

Mathematics
1 answer:
e-lub [12.9K]2 years ago
8 0

Answer: y=-2x+6

Step-by-step explanation:

m=\frac{6-2}{0-2}=\frac{4}{-2}=-2

So y=2x+b. We can substitute (0, 6) to get:

6 = 2(0)+b

b=6.

Meaning y=-2x+6.

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How many 3/4 are in 7/8
Marysya12 [62]
\frac{7}{8}:\frac{3}{4}=\frac{7}{\not8^2}*\frac{\not4^1}{3}=\frac{7}{2}*\frac{1}{3}=\frac{7}{6}=1\frac{1}{6} <-- Answer

=1,1666...=1,1\overline{6}
5 0
3 years ago
Round 824.0472 to the nearest hundredth.
Gelneren [198K]

Answer:

824.05

Step-by-step explanation:

the hundreths place is two spots behind the decimal, there is a four. Look at the number next to it is a 7 so you round up

4 0
2 years ago
if a wheelie chair is pushed down the 6th grade hallway and does not bump into any people or lockers, what causes the wheelie ch
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8 0
2 years ago
How many solutions does the equation |x+7|=-1 have
lana66690 [7]
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7 0
2 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 ...

  \left[\begin{array}{cc}a&b\\d&c\end{array}\right]

where each of a, b, c, d is a 2×2 array of tiles. Let's use the notation a' to represent the 2×2 array "a" rotated right 1/4 turn. For 90° rotational symmetry, we must have b=a', c=b'=a'', d=c'=b''=a'''. That is, once "a" is determined, the rest of the grid is determined. Since "a" consists of 4 tiles, each of which can be black or white, there are 2^4 = 16 patterns that have 90° rotational symmetry.

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

__

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.)

__

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 ...

  65,536 -256 = 65,280 . . . . colorings not rotationally symmetric

8 0
3 years ago
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