Answer:
22.5
Explanation:
A car moves 12 on north so it will a vertical length of 12.
It also moves 19 km east so it will have a horizontal length of 19.
Since north and south have different vectors, or different slope they will form perpendicular lines so it forms a right angle.
Since it has a right angle and it ask for displacement (which is the distance between the two directions) we use the pythagorean theorem.

where r is displacement and a and b are the vectors.




which is about 22.5
Answer:
translation - Snape was actually born in 1960, wasn't he?
Yes i am definitely indian
Answer:
放学后,他去图书馆看书。Without the comma, it would be 他放学后去图书馆看书。
Explanation:
The literal translation of the first one: After school, he goes to the library to read books. The second one is: He after school goes to the library to read books. 放学=after school 后=after 他=he 去=go/goes 图书馆=library 看=see (in this case "read") 书=books