Answer:
x=6
Step-by-step explanation:
-2x+15=7
-2x=7-15
-2x=-8
x=-8/-2
x=6
Answer:
<em>Domain:</em> -3 < x <2
<em>Range:</em> -4 < y < 5
<em>Is the graph a function?</em> No the graph isn't not, since the graph fails the <em>vertical line test</em>
The mean absolute deviation for the number of hours students practiced the violin is 6.4.
<h3>What is the mean absolute deviation?</h3>
The average absolute deviation of the collected data set is the average of absolute deviations from a center point of the data set.
Given
Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours.
The given data set is;
45, 38, 52, 58, 42
Mean Deviation = Σ|x − μ|/N.
μ = mean, and N = total number of values
|x − μ| = |45 − 47| = 2
|38− 47| = 9
|52− 47| = 5
|58− 47| = 11
|42− 47| = 5
The mean absolute deviation for the number of hours students practiced the violin is;

Hence, the mean absolute deviation for the number of hours students practiced the violin is 6.4.
To know more about mean value click the link given below.
brainly.com/question/5003198
Answer:
EQUILATERAL TRIANGLE = 3/27

<h2>SO THE ANS IS 9 .</h2>
I HOPE IT IS HELPFUL
Mma can see that 2.09 is closer to 2 than 2.36.