Step-by-step explanation:
a ) Distance = 7150 km , speed = 780 km / hr So , time taken. ... 42 5 m / sec So , Time taken = Distance Speed = 8 0 . 42 / 5 = 8 × 5 0 . 42 sec = 95 .
Answer:
1.835
Step-by-step explanation:
use pythagoras theorem to find missing side
use sin to find missing angle
missing side/13 = 1.835
Answer:

Step-by-step explanation:
We want to simplify:

We expand to get:

We expand further to get:

These are the answers
<span> -0.315342
-12.684658</span>