Answer:
They represent am unknown number
Answer:


Step-by-step explanation:
Given



See attachment for illustration
Solving (a): Trigonometry ratio to calculate h.
From the attachment, we have:

Multiply both sides by d


Rewrite as:

Solving (b): The value of h
We have:


So:



You need 2 cups soda for every 3 cups of vinegar
So all we have to do to calculate for every cup of vinegar is 2/3
2/3= 0.66 of one cup (66% filled)
Divide by A and <span>b5</span> to both sides. You can rule out option A and B. You're dividing both sides by 4b5 to isolate h by itself. Remember that when you didivde by same term aa=1 you get ONE. so h is alone. The answer is D.