In this equation when it says y2 do you mean 2y or no
Answer:
The average cost of each tie is $56.350
Step-by-step explanation:
We are given that a men tie buyer plans to promote a $39.99 tie. Consequently, the buyer purchases 450 ties
So, Cost of 450 ties = 
An order for 100 ties that cost $20.00 each
Cost of 100 ties = 
Total cost price = 17995.5+2000 = 19995.5
Let the selling price of 1 tie be x
Total ties = 450+100 = 550
So, SP of 550 ties =550x
Now we are given that markup is 55%
So, Profit % = 55%
So, 
Substitute the values





Hence The average cost of each tie is $56.350
Given equation : y=ax^2
Taking a to the other side we have, x^2=(1/a)*y
This equation describes a parabola that opens up.
When a is negative, the focus is on the negative y-axis, therefore, the parabola opens down.
The answer is a. down.
i believe the answer should be 30 degrees
Answer:
Very interesting observation
~ Maria
Step-by-step explanation: