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ehidna [41]
3 years ago
15

15

Mathematics
1 answer:
Keith_Richards [23]3 years ago
5 0
Do u have a picture?
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Help, I don't remember​
GenaCL600 [577]

Answer:

  x = 144

Step-by-step explanation:

What you need to remember about this geometry is that all of the triangles are similar. As with any similar triangles, that means ratios of corresponding sides are proportional. Here, we can write the ratios of the long leg to the short leg and set them equal to find x.

  x/60 = 60/25

Multiply by 60 to find x:

  x = (60·60)/25

  x = 144

_____

<em>Comment on this geometry</em>

You may have noticed that the above equation can be written in the form ...

  60 = √(25x)

That is, the altitude from the hypotenuse (60) is equal to the geometric mean of the lengths into which it divides the hypotenuse (25 and x).

This same sort of "geometric mean" relation holds for other parts of this geometry, as well. The short leg of the largest triangle (the hypotenuse of the one with legs 25 and 60) is the geometric mean of the short hypotenuse segment (25) and the total hypotenuse (25+x).

And, the long leg of the large triangle (the hypotenuse of the one with legs 60 and x) is the geometric mean of the long hypotenuse segment (x) and the total hypotenuse (25+x).

While it can be a shortcut in some problems to remember these geometric mean relationships, you can always come up with what you need by simply remembering that the triangles are all similar.

3 0
3 years ago
The ratio of adults to children attending a new exhibit at the museum was found to be 8:5. Based on this ratio, if 390 people at
Zinaida [17]
8x+5x=390\\&#10;13x=390\\&#10;x=30\\\\&#10;5x=5\cdot30=\boxed{150}
6 0
3 years ago
Read 2 more answers
I can’t use hint of else I’ll get it automatically wrong! Please help!
faltersainse [42]

Answer:

make circle open

Step-by-step explanation:

8 0
3 years ago
Which graph does NOT represent a function?<br> A) A <br> B) B <br> C) C <br> D) D
VashaNatasha [74]
D is the answer because it in the owing
6 0
3 years ago
Read 2 more answers
A. A cell phone regularly priced at $100 went on sale for<br> $79.
Triss [41]

Answer:

21% off

Step-by-step explanation:

if the phone was regularly priced at 100 dollars and is now priced at 79 then that would discount the phone by $21 making the price drop at 21%

4 0
3 years ago
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