calc14
26.07.2019 •
Mathematics
Target has a $125 bicycle on sale for 20% off. with you target card you get another 5% discount. what are the discounts and the sale price of the bicycle?
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Ответ:
Ответ:
Ответ:
we know that :
10*pi/3> convert to degrees> 10*180/3=600 degrees
600=360+240
240 degrees belong to the III quadrant so
the x-coordinate is negative
the y-coordinate is negative
240°=180°+60°
60 degrees is the angle to find the terminal point
let ∅=60°
in the unit circle
r=1 units
x=-r*cos ∅> x=-cos 60> x=-(1/2)
y=-r*sin ∅> y=-sin 60> y=-(√3)/2
the point is ( -1/2 , -√3/2)