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katen-ka-za [31]
3 years ago
11

Help me out with this

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0
The process is similar to (and easier* than) adding three 4-digit numbers. Add the numbers in each column.

The sum is ...
  (2+1-3)x³ +(-4+6+2)x² +(6-8-4)x +(-3+12-7)
  = 0x³ +4x² -6x +2

The sum is 4x² -6x +2


_____
* The process is easier because there are no "carry" operations from one column to another as there may be when adding multi-digit numbers.
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Vera_Pavlovna [14]

Answer:

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Step-by-step explanation:

The given equation is

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y=\frac{27x}{3}\\ y=9x

So, the constant is k=9.

Another proportions that have the same constant as the given equation are

y=9x

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8 0
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The value of a car is $30,000 and depreciates at a rate of 6.5% each year.
navik [9.2K]

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6.5% of 30000

6.5/100 x 30000

(6.5 x 30000)/100

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Second year=28050-1950=26100

Third year=26100-1950=24150

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