Why did the narrator use the phrase “fit together like puzzle pieces” to describe how the cells of a developing human embryo form a human face
Answer:

General Formulas and Concepts:
<u>Calculus</u>
- Derivative Notation
- Definition of a Derivative:

Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = -10x
<u>Step 2: Find Derivative</u>
- Substitute:

- Distribute -10:

- Distribute -1:

- Combine like terms:

- Divide:

- Evaluate:

Answer: 3x+8
Step-by-step explanation:
1st character = 26 possibilities ( 26 letters in the alphabet)
2nd character = 26 possibilities
3rd character = 26 possibilities
4th character = 10 ( 10 special characters)
26 x 26 x 26 x 10 = 175,760 combinations
Here are 2, they simplify down to 3:2 so they are equivalent
6:4
9:6<span />