What is 27x2 − 13x2?

Mathematics

2 answers:

algol [13]3 years ago

8 0

Answer:

Step-by-step explanation:

27 x 2 = 54

13 x 2 = 26

54 - 26 = 28

anastassius [24]3 years ago

7 0

Answer:28

Step-by-step explanation:

first=27x2=54

secondly=13x2=26

solution=54-26=28

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Rewrite the following polynomial in standard form

blagie [28]

Answer:

-7x³ - ⅑x - 1

Step-by-step explanation:

A polynomial written in standard form would be written in such a way that the term with the highest degree comes first, followed by the second highest and so on, then what comes last is the constant.

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Thus, we would have:

✅-7x³ - ⅑x - 1

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Step-by-step explanation:

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The predicted cost c (in hundreds of thousands of dollars) for a company to remove p% of a chemical from its waste water is show

alukav5142 [94]

We presume your cost function is
c(p) = 124p/((10 +p)(100 -p))

This can be rewritten as
c(p) = (124/11)*(10/(100 -p) -1/(10 +p))

The average value of this function over the interval [50, 55] is given by the integral
$\frac{1}{55-50} \times \frac{-124}{11} \int\limits^{55}_{50} {(\frac{1}{x+10}+\frac{10}{x-100})} \, dx$
This evaluates to
(-124/55)*(ln(65/60)+10ln(45/50)) ≈ 2.19494

The average cost of removal of 50-55% of pollutants is about
$2.19 hundred thousand = $219,000