Answer: This problem is all mixed up. There is no way to solve it with it like this.
Step-by-step explanation:
Answer:
1/72
Step-by-step explanation:
1/8 of 1/9
=1/8x1/9
=1/72
I believe the answer to your question is 11650
Answer
If we had a sale price of 30% off of $1,050then the sale price is 70% of $1,050 or 0.7(1050) Then we add 7% sales tax to that making thefinal price paid 107% of [0.7(1050)] ... 1.07[0.7(1050)] = $786.45
We have that
![y=- x^{2} +36](https://tex.z-dn.net/?f=y%3D-%20x%5E%7B2%7D%20%2B36)
we know that
Is the equation of a vertical parabola open down
so
the vertex is a maximum
step 1
convert the equation of the parabola in the vertex form
![y=- x^{2} +36 \\ y-36=- x^{2}](https://tex.z-dn.net/?f=y%3D-%20x%5E%7B2%7D%20%2B36%20%5C%5C%20y-36%3D-%20x%5E%7B2%7D%20)
the vertex (h,k) is the point (0,36)
Part a) The point on the graph where the height of the tunnel is a maximum is (0,36)
Part b) The points on the graph where the height of the tunnel is zero feet is when y=0
so
for y=0
![- x^{2} +36=0 \\ x^{2} =36 \\ x= (+/-) 6](https://tex.z-dn.net/?f=-%20x%5E%7B2%7D%20%2B36%3D0%20%5C%5C%20x%5E%7B2%7D%20%3D36%20%5C%5C%20x%3D%20%28%2B%2F-%29%206)
the points are (-6,0) and (6,0)
see the attached figure