As an estimation we are told 5 miles is 8 km.
Convert 50 miles to km.
km

Step-by-step explanation:

5 miles = 8km

5×10 = 50 miles

Therefore 8×10 = 80km

Therefore 50 miles = 80km

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

all but the second one

step-by-step explanation:

cuz that one goes over 180

mark brainliest