3 years ago

-223 a real nummber

Mathematics

1 answer:

Olenka [21]3 years ago

3 0

Answer:

Yes

Step-by-step explanation:

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Step-by-step explanation:

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nata0808 [166]

First, solve 10x + y = -20 for y: y = -20 - 10x

Next, substitute -20 -10x for y in the second equation:

-20 - 10x = 2x^2 - 4x - 16.

Rearranging, 2x^2 + 6x + 4 = 0

Simplifying, x^2 + 3x + 2 = 0

The roots of this poly eqn are -1 and -2. Therefore, x = -1 and x = -2.

One by one, subst. these x-values into y = -20 - 10x to find the corresponding y-values.

Your answers should look like this: (-1, y) and (-2, y) (different values for y).

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parallelogram is a quadrilateral with two pairs of parallel sides. A trapezoid has one pair of parallel sides .

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