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3 years ago

14

For what values of x is rational expression below undefined x-7/x^2-7x-8

1 answer:

Novay_Z [31]3 years ago

8 0

The values are x = 8 and x = -1.

To find the undefined values, we need to know when the denominator is zero.
To do this, we need to factor it and find the value that would make either factor equal to zero.

If factors to: (x - 8)(x + 1)

Therefore, the undefined values would be at 8 and -1.

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Anika [276]

Answer:

The perimeter of triangle is 19.8 units

Step-by-step explanation:

we know that

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the formula to calculate the distance between two points is equal to

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step 1

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$A(-2,3),B(3,0)$

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we have

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substitute in the formula

$d=\sqrt{(-3-0)^{2}+(-4-3)^{2}}$

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step 3

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we have

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What is the solution to the following system of equations? 4x + 2y = 18 x − y = 3

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For this case we have the following system of equations:

$4x + 2y = 18\\x-y = 3$

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$x = 3 + y$

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$4 (3 + y) + 2y = 18\\12 + 4y + 2y = 18\\12 + 6y = 18$

We clear the value of the variable "y":

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We look for the value of the variable "x":

$x = 3 + y\\x = 3 + 1\\x = 4$

Thus, the solution of the system is given by:

$(x, y) :( 4,1)$

Answer:

$(x, y) :( 4,1)$

Option D

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Answer:

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