Page 34 - English Edition, the Book with Ch. 38 Added..docx

In the United States, USA, what percentage of college

graduates. What is the dropout rate?
Gaussian curve score (Wikipedia): A (top 20%) B (20-50%) C
(50 to 80%) D / F (80 to 100%)

In the United States In USA
The first 80% pass the course; (4/5 ^ 3) += 50% This means that

only 50% have a bachelor's degree.

7.5 I solve the fifth theorem of ​Euclidean geometry

Prove that only one parallel line passes through a point outside
the line. (parallel to the line) My proof: draw a line

perpendicular to the horizontal line by point. 90 degrees exist.
Only one line through a point can be perpendicular to the

vertical line.

7.6 I solve the math problem
3. Are all even numbers the sum of the sum of prime numbers or

product of prime numbers?
Answer: 1. All even numbers are products of 2, so all even
numbers can be halved (double).

2. All even numbers can be divided into 1 + X and X is the
product.

3. You can add or add 2 prime numbers to make a variety of
combinations from all prime lists. You may find an infinite
number of values. This proves that almost all even numbers can

be the sum of two prime numbers. Or 2 prime products.

4. List all prime numbers, you can find infinitely many, prime
numbers.

7.7 Physical Mathematical Proof Derivation
4. Substituting Substitution

5. The equal sign is multiplied by the same value, something

7.8 Extra: