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Svetllana [295]
3 years ago
15

What is the difference of the polynomials [m²n²-7]-(mn+4)

Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0
You can do addition and substraction operations with polynomials similarly as with simple real numbers.


First of all you have to open brackets and then you can add numbers (-7-4=-11). Then the result is following:
(m^2n^2-7)-(mn+4) =m^2n^2-7-mn-4=m^2n^2-mn-11
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If 100% of a number is 15, what is 50% of the number?
anzhelika [568]

Answer:

Let n be the number

100% of a number is 15 is written as: 100% × n = 15

100% = 100 / 100 = 1

Hence

100% × n = n = 15

We now need to find 50% of the number

50% of 15 = (50 / 100) × 15 = 750 / 100 = 7.5

Step-by-step explanation:

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Solve |8y+4|=2|y-1|<br> please show the work!
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2 years ago
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ElenaW [278]

Answer:

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At df=157, the t critical is 1.65

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=(25.2-21.8)+-1.65*1.61

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5 0
3 years ago
Going into the final exam, which will count as two tests, Brooke has test scores of 75, 82, 70, 65, and 90. What score does Broo
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2 years ago
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