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3 years ago

What is 8+16 when you are doing a prime fractorization

1 answer:

3 0

"Prime Factorization" is finding which prime numbers multiply together to make the original number.
∴ 8 = 2 * 2 * 2
And 16 = 2 * 2 * 2 * 2

∴ 8 + 16 = 2 * 2 * 2 + 2 * 2 * 2 * 2   ⇒⇒⇒ taking ( 2 * 2 * 2) as a common

∴ 8 + 16 = (2 * 2 * 2) ( 1 + 2 )
               = 2 * 2 * 2 * 3
               = 24

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Divide.<br> (8x^3+ 31x^2+ 6x +40) + (2x+8)

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Answer:

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3 years ago

Can someone help? Will give brainliest!! Ty

den301095 [7]

7.2

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Step-by-step explanation:

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ANTONII [103]

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3 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

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

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

4 years ago