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Masja [62]
3 years ago
13

Find the domain for the expression: y/y-5 + 1/y+8

Mathematics
2 answers:
Jet001 [13]3 years ago
7 0

Answer:

1/y+4

Step-by-step explanation:

1-5+1/y+8

1/y+(1-5+8)

1/y+4

maria [59]3 years ago
3 0

\frac{y}{y}  - 5 +  \frac{1}{y} + 8

→(1 - 5) + \frac{1}{y}  + 8

→-4 = \frac{ - 4}{1}  =  \frac{ - 4 \: • \: y}{y}

→\frac{ - 4 \: • \: y + 1}{y}  =  \frac{1 - 4y}{y}

→\frac{(1 - 4y)}{y}   + 8

→8 =  \frac{8}{1} =  \frac{8 \: • \: y}{y}

→\frac{(1 - 4y) + 8 \: • \: y}{y}  =  \frac{4y + 1}{y}

→\frac{4y + 1}{y}

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I have to study for a test. It's for data management. Does anyone have tips? (Grade 7)
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Studying: Use resources.

If your studying for a test, use some resources, like quizizz, quizlet, flashcards, or the internet. If you do, ask your parents for help. Think it like its your big test, and your studying a lot. If you study and try, you'll pass the test on data management. If you need it, ask your teacher for tutoring or practice some data management questions. Studying will help you not to fail a test.

Now, we'll talk about before the test.

Before test: Rest, eat breakfast, and stay calm.

Step-by-step explanation: Going to bed before a test can prevent you from going to sleep. For example, GMAS (for me) is coming soon, and my teacher encourage us to rest, eat breakfast and stay calm. A recommended time for you to go to bed is 8:00-9:30.

Now, about breakfast.

Eating breakfast is also important because you can perform better, in fact, scientists say that if students eat breakfast before a test or exam, they will perform better! Whatever you do, don't skip breakfast. If you do, you won't perform good, and theirs a chance you could fail.

Now, staying calm is the big one.

If your freaking out, stay calm, say a prayer and get your work done! Staying calm is the big one because most students (I am one of them) get worried if they're gonna fail. Keep this in mind: <u>Try. Your. Best.</u> If you don't try, you won't achieve anything. And please don't cheat. If you cheat, you'll have to repeat the whole grade. Can't cheat in college; you'll get kicked out.

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Hope you do good on your test!

~ Lily, from Brainly.

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