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melisa1 [442]
2 years ago
15

HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEe

Mathematics
1 answer:
stellarik [79]2 years ago
4 0
What am I helping you with
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Please help!! Geometry, will mark brainliest!
melisa1 [442]

Answer:

n = 36

Step-by-step explanation:

The opposite sides of a parallelogram are congruent , that is

AB = DC , substitute values

\frac{2}{3} n - 5 = \frac{1}{3} n + 7 ( multiply through by 3 to clear the fractions )

2n - 15 = n + 21 ( subtract n from both sides )

n - 15 = 21 ( add 15 to both sides )

n = 36

8 0
3 years ago
Read 2 more answers
Which is the graph of y = _0.4x?<br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
cestrela7 [59]
Y = -0.4x

1) It is a straight line
2) I passes through the origin (0,0), because the y-intercpet is 0.
3) The slope is negative, so it passes throuh II and III quadrants
4) The magnitude of the slope = 0.4
4) The angle of the line with the negative side of the x-axis is that whose tan is 0.4 => angle = 21.8 °

With all that information you can identify the graph, given that you didn't include the options.
8 0
3 years ago
X + 2y = 13 <br> -x + y = 5
galben [10]

Answer:

x= 1 and y= 6

Step-by-step explanation:

3 0
3 years ago
Please help me with the questions I have please help me with the question mark you as a brnlist
Harlamova29_29 [7]

Answer:

x = 21

Step-by-step explanation:

You can solve this problem by using similar triangles. You can tell that the two triangles are similar by AAA (since two angles are the same, the third must be too).

Now that we've established that the triangles are similar, you need to identify the corresponding sides:

12 corresponds to 28

9 corresponds to x

In order to find x, you'll need to find the scale factor, which you can find by dividing 28 by 12:

28 ÷ 12 = 7/3

Now that you know that 7/3 is the scale factor, you can multiply it by 9 to find x:

9 × 7/3 = x

x = 63/3

x = 21

4 0
2 years ago
PLEASE HELP ITS DUE TODAY!
Anton [14]

Answer:

1. 11(2r+1

2.16(2+1)

3.9(c+4)

4.14(3k+2)

3 0
2 years ago
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