X 2 − 10 x − 18 y − 2 = 0 Explanation: for any point ( x , y ) on the parabola the distance from ( x , y ) to the focus and directrix are equal ⇒ √ ( x − 5 ) 2 + ( y − 3 ) 2 = | y + 6 | squaring both sides ( x − 5 ) 2 + ( y − 3 ) 2 = ( y + 6 ) 2 ⇒ x 2 − 10 x + 25 + y 2 − 6 y + 9 = y 2 + 12 y + 36 ⇒ x 2 − 10 x − 18 y − 2 = 0
It is given in the question that
Sam sells cars and earns 3.5% commission in sales. In one day he sold 3 of the same cars each for $21,500.
Selling price of each car is $ 21,500. Therefore selling price of 3 cars is

And Sam earns 3.5 % commission .
So to find the Sam's commission, we have to do

And the Sam's earning is $2257.50 .
Answer:
Step-by-step explanation:
Hi
YesAnswer:
Step-by-step explanations d