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Gala2k [10]
3 years ago
6

The sum of 8n^2-3n+10 and -3n^2 -6n-7 is

Mathematics
1 answer:
EastWind [94]3 years ago
7 0

8n^2-3n+10 + -3n^2-6n-7

8n^2 + -3n^2 = 5n^2

-3n + -6n = -9n

10 + -7 = 3

Put them all together and you get 5n^2-9n+3

I tried to space them out so that it makes more sense.

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a group of friends went to lunch. the bill, before sales tax and tip, was $37.50. a sales tax of 8% was added. the group then ti
valentina_108 [34]
First, there was $37.50.
Then, there was a tax of 8%.
Then, there was a tip of 18%.
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To find the percent of something, first you need to put the percent as a decimal.

8% in decimal form is 0.08 (If you think about it literally, they're both 8 hundredths)

Finally, just multiply the percent in decimal form by the number.

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Okay this is how I would figure this out:
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What is negative 30 over twelve
larisa86 [58]
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arsen [322]

Answer:

a_{n} = 3n + 3

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The sequence is arithmetic with explicit formula

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a_{n} = 6 + 3(n - 1) = 6 + 3n - 3 = 3n + 3

7 0
3 years ago
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