Answer:
It would be B
Step-by-step explanation:
Let the height of the first tower be x, then the second tower is (160 - x) m taller than the first tower. Then
tan 30 = (160 - x)/80
160 - x = 80 tan 30
x = 160 - 80 tan 30 = 160 - 46.19 = 113.8 m
Therefore, the height of the first tower is 113.8 m.
Answer:
Step-by-step explanation:
Hello! 
because if you multiply numbers with exponents you add the exponents.
Now we've got
.
Sadly it has to be in exponential form. You can substitute 
into the equation if you know a.
Answer:
they are equivalent to 4
Step-by-step explanation:
