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densk [106]
2 years ago
10

A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely gues

sing Explain
Mathematics
1 answer:
umka2103 [35]2 years ago
7 0
Hmmm. 20 or 30 so the teacher will count the rest,if a student guessed, wrong or right
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(3n^2-5n+6) + (-8n^2-3n-2)=
Aleksandr [31]

Answer:

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Step-by-step explanation:

Remove Parentheses :

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Collect/Combine Like terms:

(3n²-8n²) + (-5n-3n) +(6-2)

Simplify:

-5n²-8n+4

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37.5

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