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24.01.2021 •
Mathematics
Factories 54m3n + 81m4n2 b) 15x2y3z + 25x3y2z + 35x2y2z
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Ответ:
Part a)
Given the expression
Apply exponent rule:![a^{b+c}=a^ba^c](/tpl/images/1060/2710/80f52.png)
Rewrite 81 as 3 · 27
Rewrite 54 as 2 · 27
Factor out the common term: 27m³n
Therefore,
Part B)
Given the expression
Apply exponent rule:![a^{b+c}=a^ba^c](/tpl/images/1060/2710/80f52.png)
Rewrite as
Factor out common term 5y²x²z
Therefore,
Ответ:
3 units
Step-by-step explanation:
The volume of the pyramid is given by the formula ...
V = 1/3Bh
where B is the base area and h is the height.
Filling in the given numbers, we find the base area to be ...
147 = (1/3)B(9)
49 = B . . . . . . . divide by 3
The square prism with the same volume will have a height given by ...
V = Bh
147 = 49h . . . . . . . fill in the known numbers
147/49 = h = 3 . . . divide by 49
The square prism has a height of 3 units.