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

The interquartile range of the data set would be 7! Hope this helps! :D
Answer: Type the questions please and take a clearer photo
Step-by-step explanation:
Answer:
This is a ratio table,so therefore there is always a pattern.
Step-by-step explanation:
In order to solve,you have to find the constant in the question,such as 30,40,50,and 60.The constant in this example is 10.When the constant is <u>not</u> even,or the numbers are <u>not</u> even,that's the time you pull out your notebook multiplication chart.Look at the numbers,and see if those numbers are on the chart.If all of them are on the chart,then see if one or both of the multiplicable numbers fall under the category of your variables.If all are under one number,then that number is your answer.