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galina1969 [7]
2 years ago
10

Need help plz very difficult

Mathematics
1 answer:
Oksanka [162]2 years ago
6 0

Answer:

D - 9x^(2)+2x-5

Step-by-step explanation:

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This is something to memorize

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3 years ago
Hailey is knitting a scarf. Each half hour, she adds 3/7 inch to the scarf's length. How much length will she add to the scarf i
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Take 3/7 and multiply it by 2 to find out how much she knits in one hour. Then take that value and multiply by 12 to find out how much she knits in 12 hours.

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3 years ago
7 times as much as the sum of 1/3 and 4/5
Zanzabum
Well first we want to divide 1 by 3 , which is 0.3  ,  Now we need to divide 4 by 5 which is 0.8 . 

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I hope this helps you a lot :)

8 0
3 years ago
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zhuklara [117]
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Answer:

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