A boat is heading towards a lighthouse, whose beacon-light is 139 feet above the water. From point A, the boat's crew measures the angle of elevation to the beacon, 6°, before they draw closer. They measure the angle of elevation a second time from point B at some later time to be 14°. Find the distance from point A to point B. Round your answer to the nearest tenth of a foot if necessary.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

its a trick question

step-by-step explanation:

dogs love water, just turn on the hose and it will run in circles chasing the water all day : )

the answer is b