dukkchild666
06.11.2019 •
Mathematics
The formula is: =iferror(round(($d$8*$i$3)/(countif($c$18: $xfd$18,"> 0")*$l$3),1)& " times! ","") $d$8 = 36 $i$3 = 2000 $c$18: $xfd$18 = 477 $l$3 = 5000 in excel i get 4.7 but when i calculate it i get 2.96. what am i doing wrong?
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Ответ:
20x² -26x+8=0
a=20 b= - 26 c = 8
thediscriminant = b²-4ac
(-26)²-4(20)(8) = 676 -640 = 36 = 6²
x1 = (26-6)/40 = 1/2
x2 = (26+6)/40 = 32/40 = 8/5