<em><u>The polynomial expression represents the area of the trapezoid is:</u></em>
<em><u>Solution:</u></em>
Given that,
The bases of an isosceles trapezoid are represented by 3x and (3x + 4)
The height of the trapezoid is represented by (x + 2)
To find: area of the trapezoid
<em><u>The area of the trapezoid is given as:</u></em>
Where b₁ and b₂ are the bases and h is the height
Therefore,
Thus the polynomial expression represents the area of the trapezoid is found
Answer:20
Step-by-step explanation: 17+24+26+13=80
Divide by how many numbers there are. Answer: 20
9 + - 24
a positive and negative make a negative, so the question is actually
9 - 24 which is -15
Answer:
a. SE = 0.403 mol
Step-by-step explanation:
The standard error of the mean, is the standard deviation of means of means.
It is calculated using,
We have the standard deviation to be
and the sample size is n=146.
We substitute the values to get:
We approximate to three decimal places to get: