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amid [387]
3 years ago
5

A) 2x-5y=10

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

Step-by-step explanation:So to find it you need to eliminate either x or y. 2x-5y=10 over 4x-10y=20. In order to get y to eliminate you need one equation to have a positive 10y and a negetive 10y. So you multiply both sides of the first equation by negetive 2 so it is now, -4x+10y=-20. Notice how all the numbers in both equations are opposite this gives us ims infinitaly many sollutions. So it is not A. Or b it will do the same thing. The answer is either D or C hope this helps

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Answer:

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8 0
2 years ago
Find the surface area of composite figure. Please help
Ivan

Answer:

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Step-by-step explanation:

we know that

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The surface area is equal to

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Step 2

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