how is the volume of a solution used in calculating concentration?
It isn't a real test. I do believe it helps you with your grade and the classes you'll take next year.
Answer:
hope it helps you......................
the answer is 16.5cm
just add 15 +1.5 and you get 16.5
Answer: It has two distinct real zeros.
Step-by-step explanation:
The formula that is used to calculate the discriminant of a Quadratic function is the one shown below:

In this case you have the following Quadractic function provided in the exercise:

Let's make it equal to 0:

You can identify that:

Knowing these values, you can substitute them into the formula and then evaluate:

Therefore, since:

You can determine that the it has two distinct real roots.