Using it's concept, the interval that contains the median number of characters is: 30 - 40.
<h3>What does the histogram shows?</h3>
The problem is incomplete, but researching it on a search engine, we have that:
- She had 3 messages between 0 and 10 characters.
- She had 1 message between 10 and 20 characters.
- She had 1 message between 20 and 30 characters.
- She had 2 messages between 30 and 40 characters.
- She had 1 message between 60 and 70 characters.
- She had 1 message between 100 and 120 characters.
<h3>What is the median of a data-set?</h3>
The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.
In this problem, we have a data-set of 9 elements, hence the median is the 5th element, as:
- The first half is composed by the first four elements.
- The second half is composed by the last four elements.
The fifth element of the histogram is in the interval 30-40, which is the interval that contains the median.
More can be learned about the median of a data-set at brainly.com/question/23923146
#SPJ1
Answer:
What is the test that you can do to tell if a graph represents a function?
A
the horizontal line test
B
the vertical line test
C
the expression test
D
the litmus test
Step-by-step explanation:
d
Reduce terms: (sin x + sin 3x)/(cos x - cos 3x) =cos(2x)/sin (2x)
(sin x + sin 3x)/(cos x - cos 3x) = cot (2x)
The last line proves the identity (sin x + sin 3x)/(cos x - cos 3x) = cot (2x)
To start, set up and equation using what you know.
(5/6) / (a/b) = (1/4)
Then, you need to isolate a/b. To do this multiply both sides by a/b and then divide by 1/4
5/6 = (a/b) (1/4)
(5/6) / (1/4) = (a/b)
Next, simplify the left side. To do this, take the inverse of 1/4 (which is 4) and multiply by 5/6 (this is also know as 'flip the second guy and multiply').
(5/6) • 4 = a/b
20/6 = a/b
Lastly, simplify to get the final answer.
10/3 = a/b