Answer:
equal
Step-by-step explanation:
Most quadratic equations have <em>equal</em> roots.
Using translation concepts, the method that Howard could have used to determine the coordinates of the vertices of the image is:
(x,y) -> (-x,y).
<h3>What is a translation?</h3>
A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
A reflection over the y-axis can be described according to the following rule:
(x,y) -> (-x,y).
Hence this rule can be applied to find the vertices.
More can be learned about translation concepts at brainly.com/question/4521517
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Kinetic energy possessed by moving train is
![E_k = 150000J](https://tex.z-dn.net/?f=E_k%20%3D%20150000J)
.
And mass
![m = 10000kg](https://tex.z-dn.net/?f=m%20%3D%2010000kg)
.
The formula for kinetic energy is
![E_k = \frac{m\times v^2}{2}](https://tex.z-dn.net/?f=E_k%20%3D%20%5Cfrac%7Bm%5Ctimes%20v%5E2%7D%7B2%7D)
.
Solve for velocity:
![E_k = \frac{m\times v^2}{2}\implies 2E_k = m\times v^2](https://tex.z-dn.net/?f=E_k%20%3D%20%5Cfrac%7Bm%5Ctimes%20v%5E2%7D%7B2%7D%5Cimplies%202E_k%20%3D%20m%5Ctimes%20v%5E2)
![v^2=\frac{2E_k}{m}\implies \underline{v = \sqrt{\frac{2E_k}{m}}}](https://tex.z-dn.net/?f=v%5E2%3D%5Cfrac%7B2E_k%7D%7Bm%7D%5Cimplies%20%5Cunderline%7Bv%20%3D%20%5Csqrt%7B%5Cfrac%7B2E_k%7D%7Bm%7D%7D%7D)
Now put in the data:
Answer:
area-34
permiter-68
Step-by-step explanation: