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Ber [7]
3 years ago
11

-3x+10=21 solve for x

Mathematics
1 answer:
Fed [463]3 years ago
8 0

Answer:

Step-by-step explanation:

-3x+10=21

-3x=21-10

-3x=11

x=11/-3

x=- 11/3

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Answer:

Cos A = (√51)/ 10

Step-by-step explanation:

sin  is opposite/hypothenuse

cos is adjacent/hypothenuse

Pythagorus theorem says that c² = a² + b²

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It doesn't make sense for a length to be a minus number therefore, we will use +√51.

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13/17% of a quantity is equal to what fraction of the quality
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2 years ago
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Anna [14]

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