The answer will be No, it is not a valid inference because his classmates do not make up a random sample of the students in the school. Hope it help!
Answer:
tornado!
Step-by-step explanation:
sometimes tornados can start off slow and sometimes they can go really fast.
If a point has the same x-coordinate as the origin, that means the point could be anywhere on the y-axis. This means it could be below the x-axis or above, but never on the x-axis. This means if you drew it on a coordinate plane, the point would always be traveling vertically on the y-axis.
Answer:
The right answer to the question is b
This is what i get, you need to remember the angle identity to answer this question
