F3R
27.02.2020 •
Mathematics
Which is the graph of f(x) = 100(0.7)*?
--100
(0,109)
50+
12.19)
+
3
4
1000
100)
Solved
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Ответ:
x=5 ; Area= 84m²
Step-by-step explanation:
(x+2)²+(4x+2)²=(5x)²
x²+4+4x+16x²+16+32x=25x²
8x²-36x-20x=0
x=5;x=-1
hypotenuse should be positive
x=5
area=lxb/2