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Lostsunrise [7]
2 years ago
14

Evaluate the express (-5) x (-1) - (-2)=?

Mathematics
2 answers:
marishachu [46]2 years ago
5 0
What they said is correcttttt
Sergeeva-Olga [200]2 years ago
4 0

Answer: 7

Step-by-step explanation:

-5 x -1 - (-2).

First, -5 x -1 = two negatives make a positive, so 5.

Now, 5 - (-2), two negatives signs make a positive sign, so 5 + 2.

Now, 5 + 2 = 7.

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In the smallest of the three triangles (with sides a,b,3) we have

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b^2+\left(\sqrt{a^2+108^2}\right)^2=(108+3)^2=111^2

\implies b^2+a^2+108^2=111^2

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(a^2+9)+a^2=657\implies 2a^2=648\implies a^2=324\implies a=18

In turn, we find

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