Answer:
its b
Step-by-step explanation:
Answer:
![D=0](https://tex.z-dn.net/?f=D%3D0)
The quadratic equation has one real root with a multiplicity of 2.
Step-by-step explanation:
Given a quadratic equation:
![ax^2+bx+c=0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%3D0)
You can find the Discriminant with this formula:
![D=b^2-4ac](https://tex.z-dn.net/?f=D%3Db%5E2-4ac)
<em> </em>In this case you have the following quadratic equation:
![4x^2+12x+9=0](https://tex.z-dn.net/?f=4x%5E2%2B12x%2B9%3D0)
Where:
![a=4\\b=12\\c=9](https://tex.z-dn.net/?f=a%3D4%5C%5Cb%3D12%5C%5Cc%3D9)
Therefore, when you substitute these values into the formula, you get that the discriminant is this:
Since
, the quadratic equation has one real root with a multiplicity of 2 .
Answer:
The principal function of platelets is to prevent bleeding. Red blood cells are the most numerous blood cell, about 5,000,000 per microliter. Red blood cells make up about 40% of our total blood volume, a measure called the hematocrit