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3 years ago

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Sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2.

1 answer:

Salsk061 [2.6K]3 years ago

5 0

(2x²<span> + 3x - 4) + (8 - 3x) + (-5x</span>²<span> + 2)

= </span> 2x² + 3x - 4 + 8 - 3x - 5x² + 2

= -3x² + 6

= 3(-x² + 2)

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Step-by-step explanation:

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The correct option is;

Jason's statement is correct. RST is the same orientation, shape, and size as ABC

Step-by-step explanation:

Here we have

ABC = (2, 1), (3, 3), (4, 1)

RST = (-4, -2), (-3, 0), (-2, -2)

Therefore the length of the sides are as follows

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BC = $\sqrt{(3-4)^2+(3-1)^2} = \sqrt{5}$

For triangle SRT we have

RS = $\sqrt{(-4-(-3))^2+(-2-0)^2} = \sqrt{5}$

RT = $\sqrt{(-4-(-2))^2+(-2-(-2))^2} = 2$

ST = $\sqrt{(-3-(-2))^2+(0-(-2))^2} = \sqrt{5}$

Therefore their dimensions are equal

However the side with length 2 occurs between (2, 1) and (4, 1) in triangle ABC and between (-4, -2) and (-2, -2) in triangle RST

That is Jason's statement is correct. RST is the same orientation, shape, and size as ABC.

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