Each Cm is equal to 10.5 kilometers
Answer:

the answer is A
Step-by-step explanation:
Answer:
(8,-9)
Step-by-step explanation:
using the principle of vectors, you match each number to their coordinates and add them
so we have (7+1,-12+3)
which is equal to (8,-9)
From my notes I’ve the derivative of arctan(x)= 1/(1+x^2)