Answer: 0.479
Explanation:
Based on the information given in the question, we can say that:
A = Americans that believe that statistics teachers know the true meaning of life.
B = Americans that do not believe that statistics teachers know the true meaning of life.
P(A) + P(B) = 1
52.1% + P(B) = 1
0.521 + P(B) = 1
P(B) = 1 - 0.521
P(B) = 0.479
A b+ on a regular class is a gpa of 3.33
The magnitude of the force of the elevator floor on the person is; 807.13 N
<h3>What is the Magnitude of force? </h3>
We are given;
Weight; W = 0.7 KN
Acceleration; a = 1.5 m/s²
There are only two forces acting on the person: which are his weight W (downward) and the normal force N of the floor against the body (upward). Thus the equilibrium equation here is;
N - W = F
N - W = ma
Here, m is the mass of body, and its value is calculated as;
W = mg
0.7 = 9.81m
m = 0.7/9.81
m = 71.42 kg
Thus;
N - 0.7 = 71.42 * 1.5
N = 0.7 + (71.42 * 1.5)
N = 807.13 N
Read more about Magnitude of Force at; brainly.com/question/9056570
Variation can be direct, inverse or joint.
The value of B when a = 48 and c = 4 is 8
The joint variation is represented as:
![A \ \alpha\ BC](https://tex.z-dn.net/?f=A%20%5C%20%5Calpha%5C%20BC)
Express the variation as equation
![A = kBC](https://tex.z-dn.net/?f=A%20%3D%20kBC)
Make k the subject of the formula
![k= \frac{A}{BC}](https://tex.z-dn.net/?f=k%3D%20%5Cfrac%7BA%7D%7BBC%7D)
If a = 24 when b = 8 and c = 2, we have:
![k = \frac{24}{8 \times 2}](https://tex.z-dn.net/?f=k%20%3D%20%5Cfrac%7B24%7D%7B8%20%5Ctimes%202%7D)
![k = \frac{24}{16}](https://tex.z-dn.net/?f=k%20%3D%20%5Cfrac%7B24%7D%7B16%7D)
![k = 1.5](https://tex.z-dn.net/?f=k%20%3D%201.5)
So,
becomes
![A = 1.5BC](https://tex.z-dn.net/?f=A%20%3D%201.5BC)
Make B the subject
![B = \frac{A}{1.5C}](https://tex.z-dn.net/?f=B%20%3D%20%5Cfrac%7BA%7D%7B1.5C%7D)
When a = 48 and c = 4, we have:
![B = \frac{48}{1.5 \times 4}](https://tex.z-dn.net/?f=B%20%3D%20%5Cfrac%7B48%7D%7B1.5%20%5Ctimes%204%7D)
![B = \frac{48}{6}](https://tex.z-dn.net/?f=B%20%3D%20%5Cfrac%7B48%7D%7B6%7D)
Divide
![B = 8](https://tex.z-dn.net/?f=B%20%3D%208)
Hence, the value of B is 8
Read more about variation at:
brainly.com/question/11544031