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Margarita [4]
4 years ago
7

What is the factor trees for 81?

Mathematics
2 answers:
Jlenok [28]4 years ago
8 0
            81
           9x9
       3x3x3x3 
hope that helps
Nikitich [7]4 years ago
7 0
I have attached it:

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Solve the question: 4/5 (b-1)-1/b=1
soldi70 [24.7K]

Answer:

We know that (4/5b - 4/5 - 1) / b = 1

Which means that b = 4/5b - 4/5 - 1

So we put variable on one side and numbers on the other side

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So b = - 9

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3 years ago
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The roof of a new sports arena rests on round concrete pillars. The maximum load a cylindrical column of a circular cross sectio
KATRIN_1 [288]

Answer: There are 3.5 metric tons will be supported by a column 8 m high and two thirds m in diameter.

Step-by-step explanation:

Since we have given that

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Since Load is directly varies as the fourth power of the diameter 'd', and inversely as the square of the height.

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L=\dfrac{kd^4}{h^2}\\\\14=\dfrac{1.k}{9^2}\\\\14\times 81=k\\\\k=1134

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L=\dfrac{1134\times (\dfrac{2}{3})^4}{8^2}\\\\L=3.5\ tons

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7 0
3 years ago
Solve the system. 9=4x-2y 2x+6=y
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Step-by-step explanation:

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2 years ago
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poizon [28]

Answer:

B

Step-by-step explanation:

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3 years ago
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