Part 1: use transformations to prove congruency.
1. given: cb i ed; cb ed
prove: acbf = aedf using isometric (rigid) transformations.

outline the necessary transformations to prove acbf 2 aedf using a paragraph proof. be sure
to name specific sides or angles used in the transformation and any congruency statements

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

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?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?