Answer: 
<u>Step-by-step explanation:</u>
The vertex form of a parabola is y = a(x - h)² + k or x = a(y - k)² + h
- p is the distance from the vertex to the focus
- -p is the distance from the vertex to the directrix

1) y = -2(x - 4)² - 1 → a = -2 (h, k) = (4, -1)

*******************************************************************************************
2) x = (y - 1)² + 2 → a = 1 (h, k) = (2, 1)

We know, Time = distance / speed
t = 0.0568182 / 50 [ 300 Feet = 0.0568182 miles ]
t = 0.001136 * 3600 s
t = 4.09 sec
In short, Your Answer would be 4.09 Seconds
Hope this helps!
Y= 2/3x-2
-3y= -2x+6
Divide by -3
Answer:
(1, -1/2)
Step-by-step explanation:
7x - 2y = 8
5x + 2y = 4
I would use elimination to get rid of y
Add the two equations together
7x - 2y = 8
5x + 2y = 4
-------------------------
12x = 12
Divide each side by 12
x =1
Now find y
5x+2y = 4
5*1 +2y =4
Subtract 5 from each side
5+2y -5 = 4-5
2y = -1
Divide by 2
2y/2 =-1/2
y = -1/2
Answer: 15
Step-by-step explanation: so you take the 5 ( or 3 it doesn’t matter In multiplication) and just add the 5 3 times. So 5+5+5 which is 15