For a submarine cable, the range of signalling is governed by the function f(r) = r^2 ln⁡(1/r)

where 0
Find df/dr.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation:

b if for most of the graph

d if y intercept

step-by-step explanation:

0lz try yourself sorry for not answering