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kolezko [41]
2 years ago
15

Need help asap comment if you can help with all extra credit work will give up to 1k points

Mathematics
1 answer:
Yuri [45]2 years ago
8 0

Answer:

<u>3</u>

Step-by-step explanation:

Radius of circle with center R : 2 units

Radius of circle with center R' : 6 units

Scale factor :

  • Radius of dilated circle /Radius of original circle
  • 6/2
  • <u>3</u>
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What is the missing length?
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Answer:  13.722 km ;  or, write as:  13  13/18 km .
___________________________________________________
Explanation:
___________________________________________________
Area = Length * width ; 
___________________________________________________
or, write as:  A = L * w ;
________________________

Given: A = 247 km² ; 
           
          L = 18 km ; 
 
          w = "y" ; 
________________________
 Find:  "y"
______________________________
  A = L * w ; 
______________________________
Plug in our values:
______________________________
  247 km² = 18 km * "y" ;  solve for "y" (in units of "km") ;

_____________________________
        18 y = 247 ; 
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Divide each side of the equation by "18"; to isolate "y" on one side of the equation; and to solve for "y" :
___________________________________________________________
        18 y / 18 = 247 / 18 ;
_____________________________________________
  to get:
_____________________________________________
              y = 13.7222222222222222...... km ;  round to: 13.722 km

                   or;  y = 13  13/18 km .
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3 years ago
Which points are the vertices of the ellipse?
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The points of intersection of the ellipse and its major axis are called its vertices. Here the vertices of the ellipse are A (a, 0) and A′ (− a, 0).

Step-by-step explanation:

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Hey there!

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Step-by-step explanation:

I looked them up on an app so I hope its right!

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