3 years ago

HELP PLEASE 15 POINTS!!!MATHEMATICS!!

Mathematics

1 answer:

alexandr1967 [171]3 years ago

5 0

Answer:

Step-by-step explanation:

the double mark means it is equal with the othe double marks and same for the single ones so angles t and g are equal and sides tu and gf r equal and finally angles u and f are equal

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3 years ago

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pishuonlain [190]

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3 years ago

How many solutions does this linear system have?

gayaneshka [121]

Answer:

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Step-by-step explanation:

We can use substitution for the solution. Substitute y=2x-5 to -8x-4y=-20 so that you end up with -8x-8x+20=-20. Next you want to add like terms which will be -16x+20=-20, next you want isolate x by subtracting 20 from both sides and leaves you with -16x=-40. Divide -16 on both sides to fully isolate x and will leave you with x=2.5. Now substiture in 2.5 for x in y=2x-5 to get y=2(2.5)-5 which will then lead to y=0.

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3 years ago

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bogdanovich [222]

Answer: The last option, <u>28</u> minutes

Step-by-step explanation:

See attached for my work. <em>If you are color blind let me know, I color-coded where I "pulled" numbers from.</em>

To answer this problem, we can look at the graph. We need to see for how long the black line is above the blue.