Domain: {x>= -9} x belongs to real numbers
graph is attached
Answer:
<h2>B. 3,4 Volt</h2>
Step-by-step explanation:
Here we need to use Ohm's Law, because we have electric current, voltage and resistances. This law state: 
So, first we need to calculate the total resistance to then find the voltage. The resistances can be placed in two ways: in parallel, in series.
The pair 4 and 8 ohms are parallel, so we solve:


Which is, 
Now, this total resistance of parallels ones is placed in series with the 3 ohm resistance, in this case we just sum, because they are in series:

Now that we have the total resistance of the circuit, we use the Ohm's Law:

Therefore, the right answer is B.
First you multiply 665*6.25=4156.25
Second you add 665+<span>4156.25=706.5625</span>
Answer:
A student have to take 2.5 credit hours so that the tuition costs are equal.
Step-by-step explanation:
We are given the following in the question:
Community college:
Tuition cost is represented by the equation

where h is the number of credit hours taken.
State college:
Tuition cost is represented by the equation

where h is the number of credit hours taken.
Equating the two equations, we get,

Thus, a student have to take 2.5 credit hours so that the tuition costs are equal.