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slamgirl [31]
3 years ago
15

What is the sum of the first positive even numbers?

Mathematics
1 answer:
ioda3 years ago
8 0

Answer:

Step-by-step explanation:

6

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HELP NEEDED ASAP!!! PLEEEEASE HELP!!!
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24

Step-by-step explanation:

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I'm not the best at explaining but you can search google to get the better Idea.

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Find the missing length the triangles are similar.
ch4aika [34]

Answer:

Step-by-step explanation:

The missing length is 13 because,

Lets say the top triangle is A and the bottom triangle is B.

Triangle A gives us the side GF, and Triangle B gives us the sides TU and ST. Since the triangles are similar(as stated in the problem), we can pair 2 sides GF(A) and TU(B) which is 11:22.(one way I usually figure which sides are similar is by first- matching the hypotenuse, then checking which of the remaining two is longer.. if that made any sense). You can see that their relationship is x2 or /2 (In another word, from A to B is multiplication- ex: 11 * 2 is 22, and from B to A is division- ex 22/2 is 11.) Since the missing number is the hypotenuse of triangle A and you know the Hypotenuse of triangle B all you have to do is divide side TS by 2 to get side SF. So the missing side is 13.

Answer: 13

8 0
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Step-by-step explanation:

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