Which points are the foci of the ellipse?

a. (−8, −1) and (−2, −1)
b. (−6, −1) and (−5, −1)
c. (−5, −4) and (−5, 2)
d. (−5, −2) and (−5, 0)

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

Which of the following is true for the relation f(x)=2x^2+1