Answer:
Refer to the explanation
Step-by-step explanation:
As approximately 10% of users fail to close Windows properly, we determine:
- The likelihood that a user neglects to shut down Windows correctly is
- The likelihood that a user shuts the Windows properly is

A. On average,
- one in ten users does not close Windows correctly;
- 10 out of 100 users fail to close Windows correctly.
B. The likelihood that precisely 8 out of the next 10 users will close Windows correctly is

Typically, the graph will have a labeled line such as f(x) = ... To find f(3), identify 3 on the x-axis, then trace vertically to the graph line and read the corresponding y-value.
We are given the triangle
△ABC, with m∠A=60° and m∠C=45°, and AB=8.
To start, we will calculate all angles and sides.
Finding angle B:
The total of all angles in a triangle equals 180.
m∠A + m∠B + m∠C = 180.
Substituting the known values,
60° + m∠B + 45° = 180.
This gives us m∠B = 75°.
Calculating BC:
Using the law of sines,

We can substitute in the values.



Finding AC:

Now we'll input the values.



Calculating Perimeter:

We substitute values here as well.


Calculating Area:
Using the area formula,

we can then insert values.

...............Answer