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professor190 [17]
4 years ago
7

Factor the polynomial completely. 4x3 – 12x2 + 7x – 21 4x2(x – 3) + 7(x – 3) which is the completely factored polynomial?

Mathematics
1 answer:
Brilliant_brown [7]4 years ago
7 0
4x^3-12x^2+7x-21=(x-3)(4x^2+7)
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<em>Comment on declining balance depreciation</em>

Often, you will see declining balance depreciation specified in terms of an acceleration factor (often 150% or 200% ("double declining balance")) and a useful life. As with any depreciation, what is depreciated is the difference between the initial value and the salvage value. The percentage rate quoted above is essentially calculated as ...

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USPshnik [31]

Answer:

12\dfrac 12\%

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\text{Let it be}~ x\%,\\\\~~~~~72 \cdot x \% = 9\\\\\\\implies 72\cdot \dfrac{x}{100} = 9\\\\\\\implies x = \dfrac{9 \times 100}{72}\\\\\\\implies x = \dfrac{100}{8}\\\\\\\implies x = \dfrac{25}2\\\\\\\implies x = 12 \dfrac 12\\\\\\\text{Hence 9 is}~ 12\dfrac 12\% ~ \text{of}~ 72

4 0
2 years ago
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