Calcula b para que la recta 2x + by = - 11 pase por el punto (-2, 5)

Mathematics

1 answer:

goblinko [34]3 years ago

3 0

Answer:

i dont kown sorry i hope i helped :)

Step-by-step explanation:

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We can write a system of equations:

1x + 10y = 182
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To find this we can solve using substitution.

Re-arrange the 2nd equation:

x + y = 56

Subtract 'y' to both sides:

x = -y + 56

Now we can plug in '-y + 56' for 'x' in the first equation.

1x + 10y = 182

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Divide 9 to both sides:

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So our final answer is (42, 14).

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You don't have a question in there but I can tell you that the quadratic formula that is shown is not quite correct.
<span>x = -b ± √b2 - 4ac 2a
For one thing, the first 3 terms should ALL be divided by 2a
The square root symbol should be extended from b^2 through 4ac
The division symbol is missing.
So the quadratic formula SHOULD read:
x = [-b +- sq root (b^2 - 4ac) ] / 2a
Also I have attached a graphic of the quadratic formula.

</span>

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