lieremia4
15.06.2021 •
Mathematics
A man 6 ft tall walks at a rate of 2 ft/sec away from a lamppost that is 18 ft high. At what rate is the length of his shadow changing when he is 65 ft away from the lamppost?
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Ответ:
y=x-5
Step-by-step explanation:
slope of line s=-1= m1
lines are perpendicular m1m2=-1 m2=1
equations of t=y-y1=m2(x-x1)
y-2=x+3
y=x+5