-16t² + 180t
-16(2)² + 180(2)
-64 + 360
The fireworks height after 2 seconds is 296 feet
Answer:
trapezoid is the right answer
Answer:
Train A is faster by a factor of 1.01
Step-by-step explanation:
Given:
Train A:
Distance = 175 Miles
Time = 4 Hours
Train B:
y=43.5x
To Find:
which train travels at a faster rate in by what factor =?
Solution:
The speed of the train A = ![\frac{Distance}{time}](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%7D%7Btime%7D)
The speed of train A =![\frac{175}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B175%7D%7B4%7D)
The speed of train A = 43.75 miles per hour
Speed of the train B is the slope of the given line
The standard equation of the slope of the line is
y = mx+b
where m is the slope
and we are given with
y = 43.5x
So comparing with the standard equation
m = 43.5
Hence the speed of train B is 43.5 miles per hours
Train A travels faster
![Rate =\frac{\text{speed of train A}}{\text {Speed of train B}}](https://tex.z-dn.net/?f=Rate%20%3D%5Cfrac%7B%5Ctext%7Bspeed%20of%20train%20A%7D%7D%7B%5Ctext%20%7BSpeed%20of%20train%20B%7D%7D)
![rate = \frac{43.75}{43.5}](https://tex.z-dn.net/?f=rate%20%20%3D%20%5Cfrac%7B43.75%7D%7B43.5%7D)
rate =1.01