Answer:
X-32
Step-by-step explanation:
We don’t know the value of s so therefore x-32
Fraction of students that opted for French = 
The total number of students = 150
Fraction of students that opted for German = 
Fraction of students that opted for Italian = 
Fraction of students that opted for French = 1 - Fraction of students that opted for German - Fraction of students that opted for Italian
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Learn more here: brainly.com/question/18819021
Step 1: 0.026=26/1000
Step 2: Simplify 26/1000=13/500
<span>To find the margin of error for the mean of a normally distributed
population from a sample, the critical probability,

, is obtained by

where p is the confidence level.
Assuming a
confidence level of 86%, the critical probability is given by

</span>
The formula of the area of a trapezoid is equal to:
Area = (a+b) / 2 * h
Substituting the values.
9 = (2.4 + 3.6) / 2 * h
9 = 6 / 2 h
9 = 3h
h = 3
So the height of the trapezoid is equal to 3m.