A railroad bridge over New Scotland Road in Slingerlands, New York, has a low clearance for trucks. An engineer standing 20 ft away measures a 15.4 ° angle of elevation from her eye level of 5.5 ft to the bottom of the bridge. If the road is flat between the engineer and the bridge, how high over the roadway is the bottom of the bridge? Round to the nearest inch.
A railroad bridge over New Scotland Road in Slingerlands, New York, has a low clearance for trucks. An engineer standing 20 ft away measures a 15.4 ° angle of elevation from her eye level of 5.5 ft to the bottom of the bridge. If the road is flat between the engineer and the bridge, how high over the roadway is the bottom of the bridge? Round to the nearest inch.
Solution Summary: The author calculates the height of a roadway from the bottom of the bridge. An engineer measures an angle of elevation from her eye level, which is 5.5ft.
A railroad bridge over New Scotland Road in Slingerlands, New York, has a low clearance for trucks. An engineer standing
20
ft
away measures a
15.4
°
angle of elevation from her eye level of
5.5
ft
to the bottom of the bridge. If the road is flat between the engineer and the bridge, how high over the roadway is the bottom of the bridge? Round to the nearest inch.
10
The hypotenuse of a right triangle has one end at the origin and one end on the curve y =
Express the area of the triangle as a function of x.
A(x) =
In Problems 17-26, solve the initial value problem.
17. dy = (1+ y²) tan x, y(0) = √√3
could you explain this as well as disproving each wrong option
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