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xxTIMURxx [149]
3 years ago
12

Someone help me on this plz

Mathematics
1 answer:
notka56 [123]3 years ago
6 0
The reflection of any point across the x axis is the symmetric of this point, having x axis as axe of symmetry 


Let :

A(1,3) its symmetric vs. x axis is A'(1,-3)

B(-1,5) its symmetric vs. x axis is B'(-1,-5)


C(-3,-3) its symmetric vs. x axis is C'(-3,3)


D(-4,-4) its symmetric vs. x axis is D'(-4,4)

Symmetry vs. the x axis keeps abscises the same & change just the sign of y value 
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How many triangles will be in the 5th set of triangles?
tia_tia [17]

Answer:

25.

Step-by-step explanation:

I am assuming you only mean the small triangles, not the composite ones.

The  second  triangle set has 3 triangles on bottom row and 1 on the top - total 4.

The 3rd triangle set has 5 triangles on the bottom , 3 on the next up and 1 on the top  - total  9

Following the pattern 4th set will have the number of triaNGLES

7 + 5 + 3 + 1 = 16.

So the 5th will have 9 + 7 + 5 + 3 +1 = 25 triangles.

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3 years ago
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Answer:

D irrational number

Step-by-step explanation:

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3 years ago
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Len [333]
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54 pi.
3 0
3 years ago
 What are the similarities and differences between the standard form and vertex form of a quadratic equation?
aniked [119]

Step-by-step explanation:

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6 0
3 years ago
A 10 ounce container if milk contains 200 calories. how many calories does each ounce of milk contain?
kaheart [24]
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5 0
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