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3 years ago

Write the slope-intercept form of the equation of the line 13x - 11y = -12

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

The answer is (13x + 12) ÷ 11 = y

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Nick has to build a brick wall. each row of the wall requires 6² bricks how many bricks will nick need to build the wall.

tatyana61 [14]

Answer:

D. $10*6^2$

Step-by-step explanation:

This fits the problem as long as there were 10 rows. The 10 signifies the number of rows while the $6^2$ is the number of bricks per row. This would be a total of 360 bricks.

5 0

3 years ago

A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of

myrzilka [38]

Answer:

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

$X \sim N(60,13.5)$

Where $\mu=60$ and $\sigma=13.5$

And for this case we select a sample size of n= 81. Since the distribution for X is normal then we know that the distribution for the sample mean $\bar X$ is given by:

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

And the standard error of the mean would be:

$\sigma_{\bar X} =\frac{13.5}{\sqrt{81}}= 1.5$

4.1.5

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 Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

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

$X \sim N(60,13.5)$

Where $\mu=60$ and $\sigma=13.5$

And for this case we select a sample size of n= 81. Since the distribution for X is normal then we know that the distribution for the sample mean $\bar X$ is given by:

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

And the standard error of the mean would be:

$\sigma_{\bar X} =\frac{13.5}{\sqrt{81}}= 1.5$

4.1.5

7 0

3 years ago

I need to know<br><br> 18=3|x-1|

larisa [96]

X=7

7-1=6
6*3=18

........

3 0

3 years ago

I need help with this

guapka [62]

Answer:

A: Fraction = 11/16 of an inch. Decimal = .6875 inch

B: Fraction = 2 1/2 inch. Decimal = 2.5 inch

Step-by-step explanation:

Each inch is divided by 16ths on the ruler. Count where the measured values lay on the ruler. Once you find the fraction you can divide the fraction to find the decimal answer.

5 0

3 years ago

Caroline scored 8 more points than three times the number of points as Kamila. If Kamila scores 8 points in her next try, she wi

nlexa [21]

Answer: 32

step by step explanation: 40 - 8 = 32

8 0

2 years ago