davishernandez357
17.05.2020 •
Mathematics
Find the area of the shaded region.
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Ответ:
10pix+65pi
Step-by-step explanation:
pi(x+9)^2-pi(x+4)^2
=pi(x^2+18x+81)-pi(x^2+8x+16)
=pix^2+18pix+81pi-pi(x^2+8x+16)
=pix^2+18pix+81pi-pix^2-8pix-16pi
=10pix+65pi
Ответ:
it is not congruent
Step-by-step explanation: I´m sorry i can not show you the work (trade secret! :) )