<span><span>1.
</span>Every summer you are driving to Pennsylvania. It
is 895 km to get there.
Now, you drive at the average speed of 100 km/h.
Let’s solve how much time will take you to get there.
=> Distance of the place is 895 km.
=> Speed is 100 km/h
Formula
=> D/s = time
=> Time = 895 km / 100 km/h
=> Time = 8.95h
Thus, it will take you about 8.95 or 9 hours to be able to get in Pennsylvania.</span>
Answer:
Vertex = (-4,-5)
P-value = -2
Opens Downward
Step-by-step explanation:
Given:
- Focus = (-4,-7)
- Directrix = -3
Since focus is less than directrix, the parabola obviously opens downward.
To find vertex (h,k), for downward parabola, focus is (h, k + p) and directrix is y = k - p
We have:
First equation being focus and second being directrix, solve the simultaneous equation:
Substitute k = -5 in any equation - I’ll choose (1) for this:
Therefore vertex is at (h,k) = (-4,-5) with p-value being -2 since p < 0 then the parabola opens downward.
Attachment added for visual reference
1 recipe ......2 5/8 = 21/8
1/2.................?
21/8 * 1/2
= 21/16
= 1 5/16