Answer:
14 -2i
Step-by-step explanation:
9 + sqrt(-4) - ( -5 + sqrt(-16))
We know the sqrt of a negative number is i * sqrt(number)
9 + isqrt(4) - ( -5 + isqrt(16))
9 + 2i - (-5 + 4i)
Distribute the negative sign
9+2i +5 -4i
Combine like terms
400 seconds
150/20=7.5 meters per second
3000/7.5=400 seconds
Umm i think yu but it... I would hae to physcally be with you to help you.
Sorry. Its hard to explain...
