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frozen [14]
2 years ago
12

(-5, 4), (8,-6) help me please.. I don't know anything about geometry ​

Mathematics
1 answer:
Tom [10]2 years ago
5 0

Answer:

Distance= 16.4 units

Midpoint= (1½, -1)

Step-by-step explanation:

\boxed{distance \: between \: 2 \: points =  \sqrt{ {(x1 - x2)}^{2} +  {(y1 - y2)}^{2}  } }

Distance between (-5, 4) and (8, -6)

=  \sqrt{ {( - 5 - 8)}^{2}  +  {[4  - ( -  6)]}^{2} }

=  \sqrt{ {( - 13)}^{2} + (4 + 6) {}^{2}  }

=  \sqrt{169 + 10^{2} }

=  \sqrt{169 + 100}

=  \sqrt{269}

= 16.4 units (3 s.f.)

\boxed{midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )}

Midpoint

= ( \frac{8 - 5}{2} , \frac{ - 6 + 4}{2} )

= ( \frac{3}{2} , \frac{ - 2}{2} )

= ( 1\frac{1}{2} , - 1)

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The heights of young women aged 20 to 29 follow approximately the N(64, 2.7) distribution. Young men the same age have heights d
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4 0
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