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tankabanditka [31]
2 years ago
11

Evaluate -2x+6y when x= -3 y=-1

Mathematics
1 answer:
Lisa [10]2 years ago
7 0

Answer:

0

Step-by-step explanation:

Substitute x for -3 and y for -1:

= -2(-3) + 6(-1)

= 6 + -6 (or 6 - 6)

= 0

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A shelf is designed so it will fit in a 90º corner between two walls. The shelf has dimensions, rounded to the nearest tenth, as
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Answer:

Yes, it will fit snugly in a 90º corner

Step-by-step explanation:

To do this, we simply need to check if the given sides of the shelf is right-angled.

So, we have:

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To check for right-angle triangle, we make use of:

Side\ 1^2 + Side\ 2^2 = Hypotenuse^2

This gives:

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242 = \sqrt{242}^2

242 = 242

This shows that the given sides of the shelf is a right-angled triangle.

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3 years ago
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Answer:

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Step-by-step explanation:

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