What is the third quartile of this data set?

21 , 24 , 25 , 28, 29, 35, 37, 39, 42

a). 29

b). 25

c).24.5

d).38

80

step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8