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vlabodo [156]
3 years ago
13

Soduko I don’t get it

Mathematics
1 answer:
horsena [70]3 years ago
7 0

Answer:

4  2  1  3

3  1  4  2

1  3  2  4

2  4  3  1

BRAINLIEST??

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31x-4+120 =180 <br> How would I solve ?<br> Any tips ?
KIM [24]

Answer:

x=64/31

Step-by-step explanation:

31x-4+120=180

31x+116=180

subtract 116 from both sides

Simplify

Divide both sides of the equation by the same term

get answer x=64/31

5 0
3 years ago
If you construct a line perpendicular to line a given by Y=22 through S(1,5) not on the line Y=22 Find the distance from S to li
Citrus2011 [14]

The distance from the point S to the line A is B. 17.

Step-by-step explanation:

Step 1; First, we plot line A which is y = 22. Line A is a line that is parallel to the x-axis at a distance of 22 units. The coordinates for line A are (x, 22) which means the points on line A are (0, 22), (1, 22), (2,22), (3,22) and so on. We plot point S at (1, 5)

Step 2; If we draw a perpendicular line from point S to line A, it will be a vertical line that intersects line A at the same x coordinate as point S. So the points are S (1, 5) and (1, 22).

Step 3; To find the distance between (1, 5) and (1, 22), we use the formula

Distance = √ (x2 - x1)² + (y2 - y1)².

Distance between (1, 5) and (1, 22) where (1, 5) is (x1, y1) and (1, 22) is (x2, y2).

Distance = √ (1 - 1)² + (22 - 5)² = √ 0 + 17² = √17² = 17 units.

7 0
3 years ago
Help please with question 5-8, show the solution
ludmilkaskok [199]

For each of these problems, remember SOH-CAH-TOA.

Sine = opposite/hypotenuse

Cosine = adjacent/hypotenuse

Tangent = opposite/adjacent

5) Here we are looking for the cosine of the 30 degree angle. Cosine uses the adjacent side to the angle over the hypotenuse. Therefore, cos(30) = 43/50.

6) We have an unknown side length, of which is adjacent to 22 degrees, and the length of the hypotenuse. Since we know the adjacent side and the hypotenuse, we should use Cosine. Therefore, our equation to find the missing side length is cos(22) = x / 15.

7) When finding an angle, we always use the inverse of the trigonometry function we originally used. Therefore, if sin(A) = 12/15, then the inverse of that would be sin^-1 (12/15) = A.

8) We are again using an inverse trigonometry function here. We know the hypotenuse, as well as the side adjacent to the angle. Therefore, we should use the inverse cosine function. Using the inverse cosine function gives us cos^-1 (9/13) = 46 degrees.

Hope this helps!

8 0
3 years ago
Solve the quadratic equation x2+8x−30=0 by completing the square.
diamong [38]

Answer:

               \bold{x=-4\pm\sqrt{46}}

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\\\\\\x^2+8x-30=0\\\\\underbrace{x^2+2\cdot x\cdot 4+4^2}-4^2-30=0\\\\{}\qquad(x+4)^2\,-\,16-30=0\\\\{}\qquad\ \ (x+4)^2=46\\\\ {}\qquad\ \ x+4=\pm\sqrt{46}\\\\ {}\qquad\ \ x=-4\pm\sqrt{46}

5 0
3 years ago
What equation represents the line that passes through the points(6,-3) and (-4,-9)?
marysya [2.9K]
M = - 3 + 9 / 6 + 4
m = 6 / 10
m = 3/5

- 3 = 3/5 ( 6 ) + c
- 15 = 18 + 5c
5c = - 33
c = - 33/5
y = 3/5x - 33/5
8 0
3 years ago
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