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katovenus [111]
3 years ago
11

I need help for this problem.

Mathematics
2 answers:
Lelechka [254]3 years ago
7 0

Answer:

Step-by-step explanation:

Equation

12x + (8x + 5) + 15x = 180    All triangles have 180o for their interior angles.

12x + 8x + 5 + 15x = 180      Combine like terms on the left

35x + 5 = 180                        Subtract 5 from both sides

     <u>  - 5      -5</u>

35x =175                                Divide by 35

x = 5

It's not clear what you want. x = 5 is one possibility

12x = 60

15x = 75

8x+5=45

is another possiblity

Harrizon [31]3 years ago
3 0

Answer:

Step-by-step explanation:

12x+15x+8x+5=180 degree(being sum of interior angles of a triangle)

35x=180-5

x=175/35

x=5

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Rewrite for two solutions: (x – 3) = 11, –(x – 3) = 11  
ANEK [815]

Answer:

x= 14, x=-14

Step-by-step explanation:

All you have to do is combine like-terms:

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<em>Hope this helped and plz mark as brainliest!</em>

<em></em>

<em>Luna G.</em>

3 0
4 years ago
assume the probability of having a boy or a girl is the same. what is the probability of have a boy then a girl then another gir
NNADVOKAT [17]

Answer:

\dfrac{1}{8}

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The sample space of having three children is:

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The probabilities of each of those events is

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5 0
4 years ago
Triangle DEF was dilated according to the rule DO,(x,y) to create similar triangle D'E'F'.
lord [1]
A dilation is a transformation, with center O and a scale factor of k that is not zero, that maps O to itself and any other point P to P'. The center O is a fixed point, P' is the image of P, points O, P and P' are on the same line.

Thus, a dilation with centre O and a scale factor of \frac{1}{3} maps the original figure to the image in such a way that the distances from O to the vertices of the image are \frac{1}{3} times the distances from O to the original figure. Also the size of the image are <span>\frac{1}{3} times the size of the original figure. Also the two resulting figures (i.e. the image and the pre-image are congruent)

Thus in the dilation of triangle DEF, the following are true.</span>
<span>∠F corresponds to ∠F'.

The measure of ∠E' is the measure of ∠E.

△DEF ≈ △D'E'F'</span>
5 0
3 years ago
Read 2 more answers
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