2/4 is the answer
x= total pieces
both ate 9 pieces
mindy ate 3 so troy ate 6
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)
So, the rocket starts descending at a given rate and time, so we first need to find the length it passed during that descent.
Length equals to speed multiplied with time:
s = v • t
since speed is given in feet per second, we need to convert minutes to seconds; if one minute has 60 seconds, then two minutes have 120 seconds.
s = 15 feet/s • 120 s
s = 1800 feet
So, the rocket descended 1800 feet, but it still has 11,400 feet to the Moon's surface. That means that the rocket was on 11,400 + 1,800 = 13,200 feet elevation when it started to drop.