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3 years ago

9

7. The amount of memory on a CD determines how many songs I can download to it. Indep. Dep.

1 answer:

galina1969 [7]3 years ago

3 0

$\bf \underset{dependent}{\stackrel{\textit{songs I can download}}{S(M)}}~~=~~\underset{independent}{\stackrel{\textit{how much memory I have}}{M}}$

the memory is the independent, because that can vary at will, so it's independently varying at will, whilst the amount of songs are limited to how much memory there's in the CD, so the songs are dependent on the memory availability.

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Serena uses chalk to draw a straight line on the sidewalk. The line is 12 ft long. She wants to divide the line into sections th

ElenaW [278]

<h3><u>Question:</u></h3>

Serena uses chalk to draw a straight line on the sidewalk. The line is 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long. How many sections will the line be divided into?

<h3><u>Answer:</u></h3>

The number of sections that the line is divided is 4

<h3><u>Solution:</u></h3>

Given that, Serena uses chalk to draw a straight line on the sidewalk

The line is 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long

From given,

$Total\ length\ of\ line = \frac{1}{2} \text{ feet }\\\\Length\ of\ each\ section = \frac{1}{8} \text{ feet }$

To find: Number of sections can be made

The number of sections that can be made is found by dividing the total length of line by length of each section

$\text{Number of sections } = \frac{\text{Total length of line}}{\text{length of each section}}$

Substituting the values, we get,

$\text{Number of sections } = \frac{\frac{1}{2}}{\frac{1}{8}}\\\\\text{Number of sections } = \frac{1}{2} \times \frac{8}{1}\\\\\text{Number of sections } = 4$

Thus number of sections that the line is divided is 4

8 0

3 years ago

I need help with this

Kruka [31]

Answer:

<h2>V = 235.5 in³</h2>

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

From the pictue we have r = 5in and H = 3in. Substitute:

$x=\pi(5^2)(3)=\pi(25)(3)=75\pi\ in^3$

$\pi\approx3.14$

Therefore

$x=(75)(3.14)=235.5\ in^3$

5 0

3 years ago

Read 2 more answers

And the last question is:

Leya [2.2K]

It should be " b " That should be right but u may want to wait for others to respond to this to make sure

6 0

3 years ago

Read 2 more answers

Birth weights in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495 g. The Newport

s344n2d4d5 [400]

Answer:

$P(2450$

And we can find this probability with this difference:

$P(-1.96$

If we use the normal standard table or excel we got:

$P(-1.96$

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

Step-by-step explanation:

Let X the random variable that represent the birth weights of a population, and for this case we know the distribution for X is given by:

$X \sim N(3420,495)$

Where $\mu=3420$ and $\sigma=495$

We are interested on this probability

$P(2450$

And we can use the z score formula given byÑ

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(2450$

And we can find this probability with this difference:

$P(-1.96$

If we use the normal standard table or excel we got:

$P(-1.96$

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

6 0

3 years ago

HELPPPPP!!!! 20 POINTS GIVEN!

babunello [35]

Answer:

Answer

4.0/5

20

JannetPalos

While representing 3 - 4 on the number line, from the starting point 0, we need to show an arrow to three numbers on the right.

Since - 4 is the additive inverse of 4, from the point where the first arrow pointed, we should go 4 points to the left.

Hence, the number line which shows an arrow from 0 to 3, and then from 3 to negative 1 is the correct one.

Step-by-step explanation:

Hope that helps!!

3 0

3 years ago