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serenityparish
03.02.2020 •
Mathematics
If the polar coordinates of the point ( x , y ) are ( r , θ ), determine the polar coordinates for the following points. (use any variable or symbol stated above as necessary.)
a) -x,y
b)-2x,-2y
c)3x,-3y
i don't understand what they are asking for because i tried the r=sqrt(x^2+y^2) and that theta = tan^-1(y/x) and it was wrong.
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Ответ:
⇒Polar Coordinate of point (x,y)=(r,Ф)
The Point (x,y) lies in First Quadrant.
r=Distance from Origin to point (x,y)
⇒The Point (-x,y) lies in Second Quadrant.
Polar Coordinate of point (-x,y)=(r,π-Ф)
⇒The Point (-2x,-2y) lies in Third Quadrant.
Polar Coordinate of point (-2x,-2y)=(2r,π+Ф)
⇒The Point (3x,-3y) lies in Fourth Quadrant.
Polar Coordinate of point (3x,-3y)=(3r,-Ф)
Ответ:
each ticket cost 5 dollar
Step-by-step explanation: if you do 80 divide 16 you will get 5. So if you did 5x16 you would get 80.