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Irina-Kira [14]
3 years ago
13

HELPPP FIRST ANSWER THAT IS ACCURATE WITH EXPLANATION GETS BRAINLIST 5 STARS AND THANKS ( DONT PLAGIARIZE )

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer:

20 x 19 = 380 hands touched

380/2 = 190 handshakes

Step-by-step explanation:

Svetach [21]3 years ago
8 0

Answer:   190 handshakes

Step-by-step explanation:

The first will shake 19  hands, the second 18 hands and so  on......the 19 th will shake one hand

so 19+18+17+.....+1=19*20/2=19*10=190 handshakes

It is  ok now?

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3 years ago
Find the value of x,
Gekata [30.6K]

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Concept:

From the given graph, we can see that it is an isosceles triangle since the two base angles are congruent.

In geometry, an isosceles triangle is a triangle that has two sides of equal length.

If you are still confused, you may refer to the attachment below for a graphical explanation or tell me.

Solve:

<u>Given information</u>

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<u>Given expression deducted from the definition of an isosceles triangle</u>

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<u>Substitute values into the expression</u>

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<u>Subtract 14 on both sides</u>

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\boxed{x=-7}

Hope this helps!! :)

Please let me know if you have any questions

5 0
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