Answer:
D = 0; one real root
Step-by-step explanation:
Discriminant Formula:

First, arrange the expression or equation in ax^2+bx+c = 0.

Add both sides by 9.

Compare the coefficients so we can substitute in the formula.

Substitute a = 1, b = 6 and c = 9 in the formula.

Since D = 0, the type of solution is one real root.
Answer:
The answer is 3
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Answer:
As per given Information
Side of square = 1 Km
we have to find the length of diagonal of square .
For finding the length of diagonal of square we will use formale
- Length of Diagonal = Side√2
Putting the value we get
↠ Length of Diagonal = 1√2 Km
So, the length of diagonal of square is 1√2 Km
Answer:
An important use of the dot product is to test whether or not two vectors are orthogonal. Two vectors are orthogonal if the angle between them is 90 degrees. ... Thus, two non-zero vectors have dot product zero if and only if they are orthogonal.
Step-by-step explanation: