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goblinko [34]
3 years ago
8

Help please please help me ❤❤❤ I give brailiast❤)

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
4 0

So remember that the perimeter is the sum of all the sides. Using this info, we can solve each of the problems as such:

<h2>7.</h2>

x+x+x+x=32\\4x=32\\\boxed{x=8}

<h2>8.</h2>

k+k+7+k+11=45\\3k+18=45\\3k=27\\\boxed{k=9}

<h2>9.</h2>

y+5y+6y-3=57\\12y-3=57\\12y=60\\\boxed{y=5}

Vsevolod [243]3 years ago
3 0

Answer:

7. x = 8

8. x = 9

9. x = 5

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Answer:

\sqrt{149\\ \\

However, that's the length of "c" and you're looking to drag it in. So,o you drag in 10^2+7^2=a^2.

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Step-by-step explanation:

To find "c" the diagonal, as explained, you need to use the theorem twice. You can first use it by finding "a", as you already have "b". To find a, you do 10^2+7^2=a^2, the hypotenuse.

100+49=149.

So, a is root 149.

a^2+b^2=c^2 so

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From the question we are told that

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