alyssanewsome
18.01.2022 •
Mathematics
I need help with this please
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Ответ:
Step-by-step explanation:
=n²- 4n + 12=(3)²- 4(3) + 12=9-12+12I don't know if it's correct
Ответ:
221.4 m³
Step-by-step explanation:
The volume of the triangular prism shown is given by the formula ...
V = Bh
where B is the area of the triangular base, and h is the height between bases.
The area of the triangular base is given by ...
B = (1/2)bh
where b is the base of the triangle, and h is the perpendicular distance to the opposite vertex.
Here, we have ...
B = (1/2)(12 m)(4.1 m) = 24.6 m²
Then the volume is ...
V = (24.6 m²)(9 m) = 221.4 m³