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3 years ago

(-9x - 4) - (4x2 + 2x - 7)

Mathematics

2 answers:

yaroslaw [1]3 years ago

6 0

Answer:

I assume you meant 4x^2

So the answer in simplified form is -4x^2-11x+3

Novosadov [1.4K]3 years ago

5 0

I think it is - 4x ^ 2 + 7x + 3

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natta225 [31]

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Step-by-step explanation:

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3 years ago

A marketing consultant observed 40 consecutive shoppers to estimate the average money spent by shoppers in a supermarket store.

KonstantinChe [14]

Answer:

0.998 is the probability that the average money spent by a sample of 40 shoppers is within $10 of the actual population mean.

Step-by-step explanation:

We are given the following information in the question:

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Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

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3 years ago

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SIZIF [17.4K]

Answer:

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3 years ago

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4 years ago

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