joelpimentel
21.07.2019 •
Mathematics
The volume of a rectangular prism is given by the formula v = lwh, where l is the length of the prism, w is the width, and h is the height. which expression represents the volume of the following rectangular prism? l=x+2 w=3x h=2x+9 a)2x^2+13x18 b) 6x^3+27x^2+54x c) 6x^3+39x^2+54x d)18x^4+117x^3+162x^2
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Ответ:
Proof of the calculation:
V = Lwh
V = (x+2) (3x) (2x+9)
V= (3x^2 + 6x) (2x + 9)
V = (6x^3 + 27X^2 +12x^2 + 54x)
V = 6x^3 + 39x^2 + 54x
Ответ:
y=2x+1 is a line
so (2x+1) *4= 8x+4
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