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bearhunter [10]
3 years ago
12

10x - 4y = -4 -3x + 7y = -22 método de Cramer

Mathematics
1 answer:
-BARSIC- [3]3 years ago
6 0

(-2,-4)

Cramer's rule

10x - 4y = -4

-3x + 7y = -22

Main determinant : 58

Determinant of <em>x</em> : -116

Determinant of <em>y</em> : -232

So, (-2,-4)

Hope this helps and please consider marking branliest.

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If x=-5 is a zero, then the first factor of the polynomial would be (x + 5 )

To find the other two factors we can divide the polynomial by the expression (x+5).

Using synthetic division, we have:

-5 I 4 15 -24 5 (Coefficients of the dividend)

I -20 25 -5 (Multiplying each coefficient by the results of the substraction and adding)

-----------------------------------------------------------------------------------

4 -5 1 0 (Coefficients of the quotient)

The result of the division is 4x^2 - 5x + 1. Factoring it, we have:

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(x-1)(4x-1) (Factoring using the common factor)

So the answer would be:

(x + 5 )(x-1)(4x-1)

3 0
8 months ago
Mr. Toler has a piece of wood that is 8 1/4 feet in length he wants to cut it into pieces that are three over 4 foot in length.
monitta

Answer:

11 pieces.Step-by-step explanation:We must divide 8 1/4 by 3/48 1/4 = 33/4Dividing:33/4 / 3/4= 33/4 * 4/3= 33/3= 11.

Step-by-step explanation:

11 pieces.Step-by-step explanation:We must divide 8 1/4 by 3/48 1/4 = 33/4Dividing:33/4 / 3/4= 33/4 * 4/3= 33/3= 11.

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Dan earns £9.80 per hour how much will I earn for eight hours work
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Answer:

£78.4

Step-by-step explanation:

Since he earns £9.80 per hour, we multiply this by how many hours there are. So £9.80 times 8 is £78.4. I hope this helps!

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Answer:

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Step-by-step explanation:

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3 years ago
Round to the nearest hundred 449-162
sergiy2304 [10]
499-162=287
287 rounded to the nearest hundred is 300

the answer is 300
6 0
3 years ago
Read 2 more answers
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