Finding the mean, also known as averaging numbers, is a very useful thing to know how to do, especially when you need a precise estimate or a very accurate generalization. Means and medians are not exact numbers; however, they are based on a series of exact numbers, therefore they are precise. Finding the mean (average) is used most often when figuring out students’ grades, the price of an item, and other things such as the daily temperature. Median is used to find the mid-section of a group of numbers, and mode is used to find the most popular term of the series (the number that appears the most often).
Answer:
6 cm
Step-by-step explanation:
A = 1/2(b + 12)(4)
36 = 1/2(b + 12)(4)
72 = (b + 12)(4)
18 = b + 12
18 - 12 = b
6 = b
or
b = 6 cm
(33/10)+(14/5)+(17/5)+(21/10) (after taking L.C.M. of denominators)
=(33+28+34+21)/10
=116/10(simplfy it)
=58/5
Using sinusoidal function concepts, it is found that the values are A = 2 and D = 2.
<h3>What is a sinusoidal function?</h3>
The cosine function, with standard period, is represented by:

In which:
is the amplitude, which is the difference between the largest and smallest value.
- D is the vertical shift, considering that the standard cosine function has range between -A and A.
In this problem, the amplitude is of 4 - 0 = 4, hence:



The standard function has range between -2 and 2, in this problem it is between 0 and 4, hence the vertical shift up is of 2 units, that is, D = 2.
You can learn more about sinusoidal function concepts at brainly.com/question/26131720