Possible derivation:
d/dx(3)
The derivative of 3 is zero:
Answer: = 0
The answer is 0.1538461538 but you round it to the nearest tenth that gives you 0.2
<em>Greetings from Brasil...</em>
Isolating S:
B = [(S+Z)/4]·h
B/h = (S + Z)/4
<h2>S = (4B/h) - Z</h2>
Hi I’m not rlly good at math but there are apps that scan the question and it gives you the answer right away!