Juliianatafur22
01.12.2020 •
Mathematics
Can someone please help me Please I'm not good with Geometry In order to safely clear a hurdle, a track runner must jump the hurdles with an angle of 30°. Find the height of the hurdle and the horizontal distance traveled if the runner covers a distance of 5 feet
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Ответ:
The hurdle and runner form a right triangle (see attached picture) such that
sin(30°) = h / (5 ft)
and
cos(30°) = x / (5 ft)
where h is the height of the hurdle and x is the horizontal distance from where the runner jumps to the hurdle. So
h = (5 ft) sin(30°) = 5/2 ft = 2.5 ft
x = (5 ft) cos(30°) = (5√3)/2 ft ≈ 4.33 ft
Ответ:
y + 7 = 2/5 (x + 4)
Step-by-step explanation:
y + 7 = 2/5 (x + 4)