Posted: February 24th, 2022

# Give three examples of invalid identifiers and explain why they are not correct.

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Chapter 2A

1 – Give an example of three valid identifiers.

2 – Give three examples of invalid identifiers and explain why they are not correct.

3 – Declare the variables which you used in question #1 with the correct data type.

Change these two numbers written in scientific notation to decimal notation:

1.234e-4 5.689e+3

Change these two numbers written in decimal notation to scientific notation.

.012 975,000

Chapter 3B

1- Give three examples of predefined functions. In your own words, explain the calculation that each function provides.

2- In your own words, explain the principle of code reuse.

3 What is a formal parameter? Give an example.

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