Answer:
Step-by-step explanation:
Given is a parabola

Let us rewrite this in vertex form

Hence vertex =
Axis of symmetry is

a=
Hence focus would lie on the line of symmetry at a distance of a from vertex
So focus =
Answer:
Not sure what you're asking, but 7.5 mph.
Answer:
cow is 65bpm
horse is 38bpm
Step-by-step explanation:
cow is given
horse divide total beats by total min
<span>X+3y=10
X-5y=-2
--------------subtract
8y = 12
y = 12/8 = 3/2 = 1.5
</span><span>X+3y=10
x = 10 - 3y
x = 10 - 3(1.5)
x = 10 - 4.5
x = 5.5
answer
x = 5.5 and y = 1.5 </span>