Fifteen-spruce 57291

A mighty gale broke the top of the fifteen-spruce spruce, resting it on the ground. The distance of this top from the trunk was 4.6 m below. At what height was the spruce trunk broken?

Correct answer:

x =  6.7947 m

Step-by-step explanation:

x+y=15 y2=x2+4.62=6.79472+4.62=25529=21.16  (15x)2 = x2+4.62  30x203.84=0  30 x203.84=0  30x=203.84  x=30203.84=6.79466667  x=37525486.794667=6.7947 m



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