3 years ago

Which of these sets of measurements represents the lengths of the sides of a right triangle?

Mathematics

1 answer:

mihalych1998 [28]3 years ago

6 0

Answer: The answer is B, just had this answer today, teacher said it was correct.

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What is the product of 2x2 – 3xy + y2 and 2x – 4y?

dybincka [34]

Answer:

C. 4x^3 - 14x^2y + 14xy^2 - 4y^3

Step-by-step explanation:

Given:

Product of 2x^2 – 3xy + y^2 and 2x – 4y

Product means multiplication

(2x^2 – 3xy + y^2) (2x – 4y)

Open the bracket

= 4x^3 - 8x^2y - 6x^2y + 12xy^2 + 2xy^2 - 4y^3

Simplify the like terms

= 4x^3 - 14x^2y + 14xy^2 - 4y^3

The answer is

C. 4x^3 - 14x^2y + 14xy^2 - 4y^3

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4 years ago

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iVinArrow [24]

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3 years ago

20 POINTS TO WHO EVER GETS IT RIGHT

yuradex [85]

The answer is A i think.

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3 years ago

Please help for 18 n 19

Hitman42 [59]

$18. \ \ \frac{-1}{x-9}- \frac{-2}{x+7}= \frac{-1(x+7)+2(x-9)}{(x-9)(x+7)}= \frac{-x-7+2x-18}{(x-9)(x+7)}= \frac{x-25}{(x-9)(x+7)}$

$\frac{2}{x}+ \frac{12}{x}=7 \\ \\ \frac{14}{x} =7 \\ \\ x= \frac{14}{7} \\ \\ x=2$

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3 years ago

Need done now !!!! WILL MARK BRAINLIEST!!!!!!!

maria [59]

P=2l+2w
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420 feet of fencing is needed.

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