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Vanyuwa [196]
3 years ago
14

What is the slope of y=7x+4

Mathematics
1 answer:
pogonyaev3 years ago
6 0
This equation is in y = mx + b format, which means m is the slope.

y = 7x + 4

m = 7

The slope is 7
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Simplify the expression.<br><br><br> 5.3x - 9 + 7.6x
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Answer:

12.9x-9

Step-by-step explanation:

First you have to combine the like terms which are 5.3x + 7.6x= 12.9x. Then you just rewrite the equation 12.9x-9. You just leave the 9 by it self beacuse thers no other like terms.

7 0
2 years ago
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A tablet PC contains 3217 music files. The distribution of file size is highly skewed with many small files. Suppose the true me
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Answer:

Let X the random variable who represents the file sizeof music. We know the following info:

\mu =2.3,\sigma =3.25

We select a sample of n=50 nails. That represent the sample size.  

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\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we can approximate the distribution of the sample mean as a normal distribution and no matter if the distribution for X is right skewed or no.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Let X the random variable who represents the file sizeof music. We know the following info:

\mu =2.3,\sigma =3.25

We select a sample of n=50 nails. That represent the sample size.  

Since the sample size is large enough n >30, we can use the central limit theorem. From this theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we can approximate the distribution of the sample mean as a normal distribution and no matter if the distribution for X is right skewed or no.

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3 years ago
The table below shows the illuminated percentage of the moon on a lunar cycle of 28 days. The relationship can be described usin
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Answer:

The amplitude of the function is 48

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Step-by-step explanation:

just took the quiz

7 0
3 years ago
Can I get another answer please ?
gavmur [86]
G(x) = x^2 + 2x + 6
g(x) = x^2 + 2x + 1 + 5
g(x) = (x+1)^2  + 5

so
f(x) = x^2 to g(x) = (x+1)^2  + 5
shifted to the left 1 unit and up 5 units

answer is A. left 1 unit and up 5 units
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SpyIntel [72]
I think c .. I already took a course .. and the test had that question.. I cant remember the answer though
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3 years ago
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