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salantis [7]
3 years ago
7

Which expression has the same value as the expression 8x^2 + 2x - 6) - (5x^2 - 3x + 2)?

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
6 0
Answer D
use photomath and sub to pewdiepie
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Use the Central Limit Theorem to find a mean given a probability Question A video game company sells an average of 132 games a m
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Answer:

The number of games must a store sell in order to be eligible for a reward is 135.

Step-by-step explanation:

Let the random variable <em>X</em> represent the number of video games sold in a month by the sores.

The random variable <em>X</em> has a mean of, <em>μ</em> = 132 and a standard deviation of, <em>σ</em> = 9.

It is provided that the company is looking to reward stores that are selling in the top 7%.

That is, P (\bar X > \bar x) = 0.07.

The <em>z</em>-score related to this probability is, <em>z</em> = 1.48.

Compute the number of games must a store sell in order to be eligible for a reward as follows:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}

\bar x=\mu+z\cdot \sigma/\sqrt{n}

   =132+1.48\times (9/\sqrt{36})\\\\=132+2.22\\\\=134.22\\\\\approx 135

Thus, the number of games must a store sell in order to be eligible for a reward is 135.

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During the first part of a hike, Andre drank 1.5 liters of the water he brought. If this 50% of the water he brought, how much d
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if 1.5 liters is 50% of the original amount, then to find the original amount you must multiply by two, or:

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