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Aneli [31]
2 years ago
6

Help please I don't know how to do this and it is due soon!!​

Mathematics
2 answers:
Aliun [14]2 years ago
7 0

Answer:

  • its an isosceles triangle
  • not a right angle triangle.

part A:

\sf AB^2 = (-2-1)^2 + (1+3)^2

\sf AB^2 =25

\sf AB =5

\sf AC^2 = (2-1)^2 + (4+3)^2

\sf AC^2 = 50

\sf AC = \sqrt{50}

\sf AC = 5\sqrt{2}

\sf BC^2 = (2--2)^2 + (4-1)^2

\sf BC^2 = 25

\sf BC = 5

use the formula:

short side² + short side² = long side²

( 5√2 )² + 5² = ( 5√2 )²

75 = 50

White raven [17]2 years ago
5 0

It's isosceles

  • A(-3,1)
  • B(1,-2)
  • C(4,2)

\\ \rm\hookrightarrow AB=\sqrt{(-2-1)^2+(1+3)^2}=\sqrt{9+16}=\sqrt{25}=5

\\ \rm\hookrightarrow BC=\sqrt{(2+2)^2+(4-1)^2}=\sqrt{16+9}=5

\\ \rm\hookrightarrow AC=\sqrt{(4+3)^2+(2-1)^2}=\sqrt{50}

  • AB=BC

Its isosceles

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Correct option is the third option .

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<h3>What is the empirical rule?</h3>

According to the empirical rule, also known as the 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95%, and 99.7% of the values lies within one, two, or three standard deviations of the mean of the distribution.

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From the empirical rule, we know that for 95% we are in 2 standard deviations of the mean. so:

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The value of a data point that is -2 standard deviations from the mean

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Learn more about the empirical rule here:

brainly.com/question/13676793

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Answer:

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