You left home and traveled west at an average speed of 40 km/h. Your friend left 30 minutes later and traveled east with an average speed of 50 km/h. Find the number of hours your friend needs to travel before you are 125 km apart.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

i need a picure

step-by-step explanation:

answer: the is put the 450

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: