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melamori03 [73]
3 years ago
7

Rút gọn bthuc 7x(4y-x) + 4y(y-7x) - (4y^2 -7x)

Mathematics
1 answer:
ale4655 [162]3 years ago
3 0

¢✓¢==¢=

Step-by-step explanation:

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shhsshsh

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The surface area (SA) of a cube with a as the length of each of its sides is given by the formula . If the surface area is known
nignag [31]

Answer:

Step-by-step explanation:

1 surface area of the cube is s*s.

There are 6 faces on such a cube.

Area = 6*s^2                  Divide by 6

Area/6 = 6s^2 / 6           Do the divsion

Area/6 = s^2

s = sqrt(area/6)

4 0
3 years ago
What is the equation of the line containing the points (5,2),(10,4)and (15,6)
MAXImum [283]
The y/x values all have the same ratio, 2/5. The line is

y = (2/5)x
5 0
3 years ago
PLZZZZ HELP ASAP PLZZZ
11111nata11111 [884]

Answer:

1. (5x - 2) + (2x - 2) + x = 180^{o}

2. m<J = 113^{o}

3. m<K = 44^{o}

4. m<L = 23^{o}

Step-by-step explanation:

Generally, the sum of angles in a triangle = 180^{o}.

So that;

m<J + m<K + m<L = 180^{o}

(5x - 2) + (2x - 2) + x = 180^{o}

5x + 2x + x -2 -2 = 180^{o}

8x - 4 = 180^{o}

8x = 180^{o} + 4

8x = 184

x = \frac{184}{8}

x = 23^{o}

Thus,

m<J = (5x - 2)

       = 5(23) - 2

       = 113^{o}

m<K = (2x -2)

        = 2(23) - 2

        = 44^{o}

m<L = x

       = 23^{o}

3 0
3 years ago
Please help with this
Svetllana [295]
To solve this equation, all you need to do is substitute the value of x that would be like this y = -2 (-3) -7 and solve, the answer would be -1.
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3 years ago
How do I find the average rate of change?​
Alenkasestr [34]

Answer:

add them all up together and then divide by the number of items

Step-by-step explanation:

8 0
3 years ago
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