El número de bacterias en una cultura se triplica cada 6 horas. su inicialmente habían 2000 bacterias determine la cantidad de bacterias a las 42 horas, a las 600 horas y a los 8 días.

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?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )