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IRINA_888 [86]
3 years ago
10

Given the following equilateral triangle: 30 4x + 10 X = [? ]

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0
ANSWER-

5=x

STEP BY STEP-

30=4x+10
(-10 from each side)
20=4x
(/4 from each side)
5=x
snow_tiger [21]3 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

If it is equilateral, that means all sides are equal

30 = 4x+10

Subtract 10 from each side

30-10 =4x

20 = 4x

Divide by 4

20/4 = 4x/4

5 = x

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Answer:

correct answer is D

Step-by-step explanation:

7 0
3 years ago
Name the postulate or theorem you can use to prove the triangles congruent.
r-ruslan [8.4K]
The question is referred to a particular pair of triangles.

They are two "siamese" right triangles. The side that they share is the hypotenuse of both triangles.

The other sides that are marked as congruent are the heights of each triangle.

Then, you can use the Hypotenuse  Leg theorem to prove the congruence of both triangles.

The hypotenuse  leg theorem states that any two rigth triangles that have congruent hypotenuse and a corresponding, congruent leg are congruent triangles.

3 0
3 years ago
Quadratic sequence are shown below Work out the next term.
barxatty [35]
1) 7, 11, 17, 25, 35

2) 6, 12, 22, 36, 54

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7) The nth term is T= n^2 + 3n

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8 0
4 years ago
Consider a sequence of transformations where ΔLMN is translated (x, y) → (x − 3, y + 4), reflected across the yaxis, and then re
Svetlanka [38]

the effect of the second transformation just is:

(x - 3, y + 4) → (-3 + 4, y + 4)

<h3>What will be the effect of the second transformation?</h3>

Here we have a sequence of transformations, we start with a point (x, y) which we:

  • First, we translate it 3 units to the left and 4 units up.
  • Second, we reflect it across the y-axis
  • Finally, we reflect it across the x-axis.

The second transformation is the first reflection, so we need to see what that reflection does.

First, the translation maps our point from (x, y) into (x - 3, y + 4).

Then, a reflection across the y-axis will only change the sign of the x-component of our point, so the effect of the second transformation just is:

(x - 3, y + 4) → (-3 + 4, y + 4)

If you want to learn more about transformations:

brainly.com/question/4289712

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5 0
2 years ago
-36=-6-2r <br>please help<br>​
kaheart [24]

Answer:

r= -15

Step-by-step explanation:

when a negative subtracts a negative you just add more negatives

2r

r= -15

2x-15= -30, -30- -6= -36

7 0
3 years ago
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