Answer:
Gerrard lived in a lonely cottage. He was a playwright. One day an intruder entered his cottage with the intention to kill him.
Answer:

Explanation:
Given

Required
Determine the directrix
First, we express the equation in form:

Where the directrix is:

So, we have:

Rewrite as:

Multiply the right hand side by 4/4


By comparison:
and 



The directrix is calculated as:

So:


Answer:
Explanation:
1. <u>Heading - Subject of the memo</u> (Like heading gives an idea about the subject about which the work is going to talk about).
2. <u>Main idea- Key points of the memo</u> (key points give the main idea of the memo).
3.<u> Explanation and Supplementary details</u>- description of the issue and possible solutions.(Explanation is synonymous to description providing details of the topic).
4. <u>Summary- Purpose of the memo</u> (Because summary provides the glance of the topic and thus, revealing the purpose too.