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mihirkantighosh
08.07.2019 •
Mathematics
Jayson earns 196 each week bagging groceries at the store he saves half his earnings each week how much money does jayson save per week?
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Ответ:
He would have saved $98 per week bagging groceries.
Ответ:
we have that
circle x
center point is (-2,8)
radius r=6 units
the equation of a circle x is
(x+2)²+(y-8)²=6²
circle y
center point is (4,2)
radius r=3 units
the equation of a circle y is
(x-4)²+(y-2)²=3²
we know that
If I can transform circle x to circle y using only translations, rotations and scaling (In the case of circles, no rotations are necessary)thencircle x and circle y are similar
hence
step 1
scaling radius circle x by a factor of 0.5
r=6 units> r=6*0.5> r=3 units
step2
translate the center circle x (-2,8)
6 units at right
6 units down
(x,y)> (x+6,y-6)(-2,8)>(-2+6,8-6)> (-4,2)
now the circle x and the circle y have the same radius an the same center using only translation and scaling
therefore
circle x an circle y are similar