Pls help me i need help RIGHT NOW pleaaa No links pls thank you :D
Which one of the following statements is true?
A. The input value is the dependent variable.
B. The input value is the independent variable.
C. The output value is the independent variable.
D. The output value can be the dependent variable or the independent variable, depending on the situation.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

What is the value of x in the this question ?

Find the length of the diagonal of the rectangle. round your answer to the nearest tenth. || | | 8 m | | | | 11 m