The function f(x) = x2 - 4x + 5 is shown on the graph. Which statement about the function is true?

1. The domain of the function is all real numbers less
than or equal to - 2.

2. The domain of the function is all real numbers less
than or equal to 9.

3. The range of the function is all real numbers less than
or equal to -2.

4. The range of the function is all real numbers less than
or equal to 9.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.