Polar coordinates : r= - 5, α= - 180⁰.
Rectangular coordinates :
x=r*cosα = (-5)*cos (-180⁰)=(-5)*(-1)=5
y=r*sinα = (-5)*sin(-180⁰)=(-5)*0=0
So, <span>(-5, -180°) (polar coordinates) is the same as (5,0) (rectangular coordinates).</span>
Answer:
(-4,8)
Step-by-step explanation:
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20% people were satisfied with the car
Step-by-step explanation:
Percentage of a certain quanitity is calculated by using the following formula

Given
Total people surveyed = 2800
People satisfied with the car = 560
So,

Hence,
20% people were satisfied with the car
Keywords: Percentage
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