Answer:
acute
hope this helps
have a good day :)
Step-by-step explanation:
We are given the following function:
![f(x)=x^2](https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2)
We are asked to do the following tranformations:
1. Shift down 5 units and left 77 units.
First, to shift a function down a number "n" of units we follow the next rule:
![h(x)=f(x)-n](https://tex.z-dn.net/?f=h%28x%29%3Df%28x%29-n)
And, to shift a function "m" units to the left we use the following rule:
![h(x)=f(x+m)](https://tex.z-dn.net/?f=h%28x%29%3Df%28x%2Bm%29)
Applying both rules simultaneously we get:
![h(x)=(x+77)^2-5](https://tex.z-dn.net/?f=h%28x%29%3D%28x%2B77%29%5E2-5)
2. Reflect about the y-axis.
The rule to reflect a function about the y-axis is the following:
![r(x)=h(-x)](https://tex.z-dn.net/?f=r%28x%29%3Dh%28-x%29)
The means that we will change "x" for "-x" in the function we are going to reflect. Applying the rule we get:
![r(x)=(-x+77)^2-5](https://tex.z-dn.net/?f=r%28x%29%3D%28-x%2B77%29%5E2-5)
3. Compress vertically by a factor of 2.
To compress a function vertically by a factor "m" we multiply the entire function by 1/m, like this:
![g(x)=\frac{1}{m}r(x)](https://tex.z-dn.net/?f=g%28x%29%3D%5Cfrac%7B1%7D%7Bm%7Dr%28x%29)
Applying the rule we get:
![g(x)=\frac{1}{2}((-x+77)^2-5)](https://tex.z-dn.net/?f=g%28x%29%3D%5Cfrac%7B1%7D%7B2%7D%28%28-x%2B77%29%5E2-5%29)
And thus we get to the final function.
Answer:
160 pages
Step-by-step explanation:
80/100×200
=160
Markup is 75%(0.75)
so,
X*1.75=63(selling price)
X=36(cost of the store originally)