Answer:
Let's start by drawing a diagram of the situation:
B
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7 mi | 5 mi
A -----x---x----- boat
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From the diagram, we can see that we have a right triangle with legs of 5 miles and (7 - x) miles, where x is the distance from B to the boat. The angle opposite the leg of length (7 - x) is (90 - 62) = 28 degrees, since the bearing of the boat from B is N62degreesE.
Using the tangent function, we can set up the equation:
tan(28) = (5 / (7 - x))
Solving for x, we get:
x = 3.86 miles
Rounding to the nearest tenth of a mile, we get:
x ≈ 3.9 miles
Therefore, the boat is approximately 3.9 miles from B.