Answer:

or 
Step-by-step explanation:
Let:

Given


Solving (a): The polynomial for the volume in terms of height
Volume (V) is calculated using:


Expand

Open brackets


Rewrite as:

Solving (b): The dimensions when Volume = 180
Substitute 180 for V in: 

Rewrite as:

Factorize:


Express
as difference of two squares

This gives:



Since the height can not be negative, then H = 5 or H = 6
Recall that:


When H = 5


When H = 6


Hence, the dimensions of the box are:

or

I would say y = sin(x + 2).
Why?
1. Is it the sine function for sure.
2. The function y = sinx is moved two places to the right as indicated by the +2.
3. The function y = sin(x + 2) crosses the point (2,0).
Answer:the diameter is 7
Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7
Answer:
19.8839 miles away
Step-by-step explanation:
:)