Find the value of x when line AB is parallel to line CD:

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

What is always true about a positive integer raised to a negative odd power?

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required