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Mandarinka [93]
3 years ago
11

Which of the following expressions are polynomials and which are not (why?) 1/x^3 +x^2

Mathematics
1 answer:
goldenfox [79]3 years ago
5 0

Answer:

none shown

Step-by-step explanation:

1/x^3 = x^(-3) has a negative exponent. It does not match the requirement that exponents be a non-negative integer. Therefore, any expression containing 1/x^3 will not be a polynomial.

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ch4aika [34]

Answer:

11.45 lumens

Step-by-step explanation:

We are given that

log(I/12)=-0.00235x

Where x=Depth

I=Intensity of light

We have to find the intensity of the light at a depth of 20 feet.

Substitute the value of x

log(I/12)=-0.00235\times 20

log(I/12)=-0.047

\frac{I}{12}=e^{-0.047}

I=12e^{-0.047}

I=11.45 Lumens

Hence, the intensity of the light (in lumens) at a depth of 20 feet=11.45 lumens

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Answer:

Step-by-step explanation:

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3 years ago
I need to know how to do it aswell
4vir4ik [10]

Answer:

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Step-by-step explanation:

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Hope this helps!

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