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3 years ago

What is 3x+5x(5-5) please help Add me on roblox dri_thebeat

Mathematics

2 answers:

Aleks [24]3 years ago

4 0

Answer:

Step-by-step explanation:

3x+5x(5-5)

3x+5x(0)

3x+0

allsm [11]3 years ago

4 0

Answer:

Step-by-step explanation:

1). First you distribute the 5 inside the parenthesis to all of the terms.And it will look like the following:

3x+25x-25x

2). Next, the terms you just ditributed will cancel and you are left with 3x.

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Answer:

(a) Probability that Y falls into the dangerous region is 0.0013.

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Step-by-step explanation:

We are given that a certain capsule is manufactured so that the dosage of the active ingredient follows the distribution Y ~ N(μ = 10 mg, σ = 1 mg).

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(b) We are given that a dosage of 13 mg is considered dangerous. And we sample 49 capsules at random.

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The z-score probability distribution for sample mean is given by;

Z = $\frac{\bar Y-\mu}{\frac{\sigma}{\sqrt{n} } } } }$ ~ N(0,1)

where, $\mu$ = population mean = 10 mg

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n = sample of capsules = 49

So, Probability that the mean Y-bar falls into the dangerous region is given by = P( $\bar Y$ $\geq$ 13 mg)

P(Y $\geq$ 13 mg) = P( $\frac{\bar Y-\mu}{\frac{\sigma}{\sqrt{n} } } } }$ $\geq$ $\frac{13-10}{\frac{1}{\sqrt{49} } } } }$ ) = P(Z $\geq$ 21) = 1 - P(Z < 21)

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