3 years ago

How many solutions are there to this system of equations? y = 2x - 1 y = 2x + 1

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

3 0

Answer:

They are 5 I think

Step-by-step explanation:

It should be correct

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nordsb [41]

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3 years ago

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5. Find the 34th term in the arithmetic sequence 9, 6, 3, <br> A. 90<br> B. -90<br> C.-57<br> D. 108

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Answer:

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3 years ago

A department store, on average, has daily sales of $28 comma 286.28. The standard deviation of sales is $1 comma 500. On Tu

wolverine [178]

Answer:

z-score = 4.43,

It is a Good day

Step-by-step explanation:

The provided information is:

Mean = $28,286.28

Standard deviation = $1,500

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Then, x = $34,924.62

The z-score is define as:

$z=\dfrac{x-\mu}{\sigma}\\\\=\dfrac{34924.62-28286.28}{1500}\\\\=4.43$

Thus, the Tuesday's z-score is 4.43. So this is usually good day.

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3 years ago