HELP ME MARKING BRAINLEIST AND 20 POINTS

Mathematics

2 answers:

Kay [80]3 years ago

8 0

THE ANSWER IS OPTION A YOUR WELCome

Reptile [31]3 years ago

4 0

Chapter: States of Matter

Ans: Increases ( option a ).

Why ?

Explanation: As when the matter goes from solid to liquid, the process is done by gaining heat energy which results a transformation phase known as <u>melting</u>. Due to this, the particles in solid gain enough kinetic energy which starts random collision with each other, hence causes the expansion of intermolecular spaces.

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If x2 + y2 = 38 and x - y = 2, then what is x? If there are two possible answers, then enter the larger of the two.

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If x-y=2 then x=2+y

And if you insert that in the first equation

$(2 + y) {}^{2} + y {}^{2} = 38$
$4 + 4y + y {}^{2} + {y}^{2} = 38$
$2y {}^{2} + 4y - 34 = 0$
$y = - 1 + \sqrt{17}$
Or
$y = - 1 - \sqrt{17}$

The first one is bigger so the answer is

$y = - 1 - \sqrt{17}$

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