write out:
45
x31
___
and do 5x1, than 4x1, than drop the 0 and do 5x3 and carry the 1, multiply 4x3 and add the 1. This should be sufficient work shown.
It would be: 20/7 = 2 6/7
In short, Your Answer would be 2 6/7
Hope this helps!
Answer:
20
Step-by-step explanation:
Use the equation 
Where b2 is a, b1 is b and h is h
Answer:
5.25 miles
Step-by-step explanation:
We are required to determine the distance between Lighthouse A and Lighthouse B in the diagram.
Using Law of Cosines

The distance between lighthouses is 5.25 miles.