Ashtree519
01.08.2021 •
Mathematics
What is the maximum value of -4z^2+20z-6?
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Ответ:
Hello,
19
Step-by-step explanation:
2 methodes:
1)
2)
y'=-8x+20=0 ==> x=20/8=5/2
and y=-4*(5/2)²+20*5/2-6=-25+50-6=19
Ответ:
So it is decreased by 1/3.