Answer:
Electrons
Step-by-step explanation:
Energy is created by the movement of electric charges called electrons among the atoms of matter.
The monthly failure rate is q = 5% = 0.05
The monthly pass rate is p = 1 - q = 0.95
We want to determine the probability of 12 passes in 12 consecutive months for a student.
P(12 of 12 successes) = ₁₂C₁₂ p¹² q⁰ = 0.95¹² = 0.5404.
Therefore if we have 100 students, the number that gets through 12 consecutive months is
100*005404 = 54 students.
Answer: 54 students are left after 12 months.
Answer: 
Step-by-step explanation:
The area of a rectangle:
×

×
× 

-Result:

Answer: 11.6 units.
Step-by-step explanation:
1. Plot the points as you can see in the graph attached.
2. As you can see, the lenght <em>TA</em> is 3 units.
3. Apply the formula for calculate the distance between two points, to calculate the length<em> TP</em> and <em>TA.</em> The formula is:

4. Therefore, you have:


5. The perimeter is the sum of the the lenght of each side, therefore:

6. To the nearest tenth unit:
