Question:

Answer:


Step-by-step explanation:
Given

Required
Simplify
In trigonometry:

So, the expression becomes:

Simplify the denominator




Express the fraction as:





Rationalize



In trigonometry:

Hence:


Answer:
Step-by-step explanation:
check the attachments below for step by step solution
Answer:
therefore they sell 30 pens.
Step-by-step explanation:
Answer:
5 kilos
Step-by-step explanation:
55:11
5:1 ratio
We're displaying ratios<span> in a </span>table<span> format here, and then asking: given a </span>ratio<span>, solve for equivalent </span>ratios<span>. Here are a few examples to practice on. Created by Sal Khan. ... Practice: </span>Ratio tables<span>. Solving </span>ratio<span> problems with graph.</span>