Real numbers are numbers that we normally use like 1,2,3,4,5... and so on. Real numbers doesn't include any negative number because you can't use them in real life. For example, you can't have -1 or -2 apples or anything in real life. The limit is 0.
Your answer would be, <span>No, it is not a valid inference because her classmates do not make up a random sample of the students in the school </span>
Answer: 19.8 Units
Step-by-step explanation:
The triangle is shown in the attached figure, and have three vertices:
,
and
.
Each vertice represents a point in the cartesian plane and the length of each side of the triangle is the modulus of each vector.
In this sense, the modulus
is calculated as shown:

Hence, for each vector:



Now, the perimeter of a triangle is the sum of its three sides:

Finally:

Answer:
Rotation
Step-by-step explanation:
If that is an option
What is this question asking