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maxonik [38]
4 years ago
15

5y-8z-(z+3y)+5(y-2z)

Mathematics
1 answer:
andrey2020 [161]4 years ago
7 0

Answer: 7y-19z

Step-by-step explanation:

Distribute

5y-8z-z-3y+5y-10z

Collect like terms

7y=19z

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The sales price of a single family house in Charlotte is normally distributed with mean $210,000 and standard deviation $35,000.
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Answer:

E(X ¯)=210,000.

Step-by-step explanation:

A sampling distribution for samples of size n=49 from a population with means μ=210,000 and standard deviation σ=35,000, has the following means anda standard deviation:

\mu_s=\mu=210,000\\\\\sigma_s=\sigma/\sqrt{n}=35,000/\sqrt{49}=35,000/7=5,000

If X ¯ is the mean sales price of the sample, it will have a mean value of E(X ¯)=210,000.

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Step-by-step explanation:

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What's the next pattern of these numbers 128,134,140,146,152
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4 years ago
An investment portfolio offers a plan that will increase your holdings 30%
algol13

Answer:

It is a worthwhile investment for both one year and for the long term.

Step-by-step explanation:

While the investment will obtain in the first half of the year gains of 30%, and in the second half of the year losses by 20%, at the end of the year the benefit obtained by the investment will be greater than 0%. Therefore, both within a year and in the long term, it is a viable and favorable investment, since it will yield positive results at the end of the cycle.

So, for example, an initial investment of $ 100 would operate in the following way:

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Thus, at the end of the year a profit of 4% of the initial investment will be obtained.

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