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.

6 0

3 years ago

Find the product.

Harrizon [31]

$(2n+2)(2n-2)\\\\=(2n)^2 -2^2 ~~~~~~;[a^2 -b^2 =(a-b)(a+b)]\\\\=4n^2 -4$

5 0

2 years ago

Read 2 more answers

you need 100 items that equal 100 dollars combs are 0.50 brushes are 3.00 and perms are 10.00 you need atleast of of each item​

you need 100 items that equal 100 dollars combs are 0.50 brushes are 3.00 and perms are 10.00 you need atleast of of each item