<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
If resistors are in series, so the current
is the same in all of them. In this problem we have four resistors. So, we can get a relationship between the Equivalent resistance of series combination and the four resistors as follows:

is the total resistance
. Moreover:

Therefore:

Answer:

Step-by-step explanation:
As x approaches 10 from the right side, h(x) approaches 18.5 but never touches it.
The domain is all real numbers. (-infinity, infinity)
You can put any real number x value into the function.
Answer:3/4
Step-by-step explanation: