Answer:

Step-by-step explanation:
The problem has a mistake, it should NOT be 2 = 5, rather a=5.
Now, given a = 5 (the first term is a), and
r = 1/3 (common ratio),
<em>we can solve for the sum of the infinite series by using the formula:</em>
<em>
</em>
<em />
Where
is the sum of the infinite geometric series,
a is the first term (given as 5), and
r is the common ratio ( r= 1/3 given)
<em>We now plug these into the formula and get our answer:</em>
<em>
</em>
What's the question you're asking?
Answer:
C) 4
Step-by-step explanation:
Given equation:

The above equation represents proportional relationship.
To find the constant of proportionality.
Solution:
<em>The equation representing proportional relationship is given by:</em>
<em>
</em>
<em>where
represents constant of proportionality.</em>
So, in order to find the value of
for the given proportionality relationship, we will solve for 
We have:

Solving for 
Dividing both sides by 2.


∴ 
Thus, the constant of proportionality = 4.
I'm sorry, but I have to seriously question the whole process.
-- What does "the angle between the Earth and sun" mean?
-- How in the world does he measure the distance between the Earth and sun ?
-- How are either of these related to the distance between the Moon and Sun ?
To me, this "scientist's" methods are as defective as this question is.