“The books that the world calls immoral are books that show the world its own shame.”
- Oscar Wilde
Formula
l×w×h=volume
12×5×9=v
540=v
Answer:
His songs were played 4 times in a commercial, and 3 times in a movie.
Step-by-step explanation:
Let x represent the number of times his songs were played in a commercial, and y represent the number of times his songs were played in a movie.
Since we know Owen's songs were played on 4 more commercials than in movies, we can write the expression
x = y + 4
Owen gets $50 every time one of his songs is played in a commercial and $140 every time one of his songs is played in a movie, so we can add these numbers into the equation below.
140y + 50x = $770
We can use the equation two lines above and substitute it into this equation so it now becomes:
140y + 50(y +4) = 770
Now we operate the equation so it becomes:
140y + 50y + 200 = 770
Now we reduce and add like terms.
190y = 770 - 200 = 570
190y = 570
570 / 190 = 3 (3 movies)
x = y + 4 = 7
y = 3
x = 3 + 4 = 7
So therefore Owen's songs were played 4 times in a commercial (x), and 3 times in a movie. (y)
Hope this helps.
Using the z-distribution, the 90% confidence interval for the difference of proportions is given by: (-0.0534, 0.0434).
<h3>What is the mean and the standard error for the distribution of differences?</h3>
For each sample, the mean and the standard error are given as follows:
- .
- .
For the distribution of differences, they are given by:
- .
<h3>What is the confidence interval?</h3>
The interval is given by:
In this problem, we have a 90% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.645.
Hence the bounds of the interval are:
More can be learned about the z-distribution at brainly.com/question/25890103
#SPJ1