A. The term "units" refers to the measurements in the original question or problem. When looking at the question, the units we are measuring are dollars/feet.
B. In this case, the f'(x) means we are looking for the cost (in dollars) to drill the next foot down.
C. Since the cost increases the more feet we drill down, the sign of f'(x) is positive.
The answer is x=3
if you divide each by -7 to isolate x, it’s equal to positive three because 2 negatives make a positive
You would use the tangent first, because the opposite of 40 would be x and the adjacent would be 30ft
Answer:
824.65
Step-by-step explanation:
The width (x) is 18. I wrote it out in case you need to show your work. Your welcome.
