A helicopter will cruise at an altitude of 8,000 feet until it lands on the runway 2.5 hours later. If the altitude is a function of the time elapsed since take-off, what is a reasonable range for this function? A. 0<_x <_ 8,000
B. 0<_y<_ 8,000
C. 0<_x<_ 2.5
D. 0<_y<_ 2.5

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?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Find the value of x. give reasons to justify your solutions! h ∈ ig