3 years ago

I need 12 13 and 15 pretty please

Mathematics

1 answer:

PtichkaEL [24]3 years ago

6 0

12) Im not sure about this one

13) c

14)a

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Step-by-step explanation:

Given:

Q(7, –10),

R(–3, 0),

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determine whether is a rig ht triangle for the given vertices = ?

Solution:

QR= $\sqrt{(-3-7)^2+(0-(-10))^2}$

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QR= $\sqrt{100+100}$

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QR=14.142136

RS= $\sqrt{(9-(-3))^2+(-8-0)^2}$

RS= $\sqrt{(12)^2+(-8)^2}$

RS= $\sqrt{144+64}$

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Substituting the values,

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$208 = 200 +8$

208 = 208

Pythagorean theorem is satisfied. Hence it is a right triangle.

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