Answer:
3/8 hours
Step-by-step explanation:
distance=speed/time=120/4=30km
time=distance/speed=30/80=3/8
Answer:
B
Step-by-step explanation:
Answer:
8
Step-by-step explanation:

Divide both sides by 7.

n must be less than or equal to 3. n can be 3 or any number under 3.
For example, n can be 1, 2, 3.
Check the picture below.
since the focus point is above the directrix, that simply means the parabola is a vertical one, and therefore the square variable is the "x".
keeping in mind that, there's a distance "p" from the vertex to either the focus point or the directrix, that puts the vertex half-way between those fellows, in this case at 0, right between 1 and -1, as you see in the picture, and the parabola looks like so.
since the parabola is opening upwards, the value for "p" is positive, thus