Step-by-step explanation:
Answer:-2n^2-2n+19
Step-by-step explanation:
To find the sum of 8n-n^2+12 and 7-n^2-10n
We collect like terms
-n^2-n^2+8n-10n+12+7
-2n^2-2n+19
They have to have the same denominator
Answer:
25.5°F
Step-by-step explanation:
²3¹¹2.¹1
<u> 6.6</u> - Bold means that its supposed to have a strikethrough 2 5.5 meaning the number is being cancelled
just take 6.6 away from 32.1
Answer: False, it's <u>not</u> a solution
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Explanation:
Replace every copy of c with 12. Then simplify.
4c - 2 > 46
4*12 - 2 > 46
48 - 2 > 46
46 > 46 ... false
The statement is false because there isn't a number that's larger than itself (or smaller than itself).
Since the last statement is false, this means the first inequality is false when c = 12.
Therefore, c = 12 is <u>not</u> a solution.
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Another approach:
Let's isolate c in the original inequality.
4c - 2 > 46
4c > 46+2
4c > 48
c > 48/4
c > 12
The solution set consists of numbers larger than 12. We leave 12 itself out of the solution set.
This is because c > 12 would be 12 > 12 which is false.