macorov37
15.12.2020 •
Mathematics
Which of the following is an even function?
f(x)= (x-1)^2
fx) = 8x
fx) =x^2-x
f(x) =7
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Ответ:
spool=260grams
thread=85m grams where m=meters left
so
260+85m=1540
minus 260 both sides
85m=1280
divide both sides by 85
m=15.058823529411764705882352941176
about 15 meters left