Can someone give me an explanation to ellipse formula please

To derive the equation of an ellipse centered at the origin, we begin with the foci (−c,0) and (c,0). Theellipse is the set of all points (x,y) such that the sum of the distances from (x,y) to the foci is constant, as shown in Figure 5.

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6