Answer:
and 
Step-by-step explanation:
At=As+Ar; A=b.h and
, then: At=(x+120)x so
(x+120)x=4500,
Applying cuadratic equation formula:
Answer:
it is 2mm long
Step-by-step explanation:
16x0.125=2 so it is 2mm long
Answer: Option 4
Step-by-step explanation:


Direction: The vector is in the second quadrant, so the direction is about 