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alexdok [17]
3 years ago
11

Can u help me with this question please

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

C, 2x + 22

Step-by-step explanation:

Its just simple combining like terms

3x-x=2x, 10+12=22

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13.55080383<br>16.36940144<br>+ 9.4567438​
skelet666 [1.2K]

Answer: not rounded: 39.37694907

Rounded to the nearest tenth: 39.4

Step-by-step explanation:

I suggest using a calculator lol! Hope this helped!

4 0
3 years ago
How to know the derivative of a function by looking at the graphs?
ozzi
The derivative is the gradient.

At any local Max's or min's the derivative graph will cut the x axis.

For example a graph x^2
The derivative will have a positive gradient as the gradient is increasing at the lower values then at x=0 the gradient is 0 so the derivative graph will pass the point (0,0). Remember that the derivative graph will be linear.

To get more detail find the points the graph crosses the x axis and put into for a(x-q)(x-p)=0 you will have to solve for 'a' by finding a point on the graph and substituting it in. Then you can find the derivative of that function and graph it
6 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
The numerical coefficient in -6x²y² is:
Lubov Fominskaja [6]

Answer:

-6 is the numeral cofficient

3 0
2 years ago
Read 2 more answers
If a cone has a height 6 feet and volume 54ft, find the radius of the base
OLga [1]

Answer:

The radius is approximately 2 93

7 0
3 years ago
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