Three research departments have 10 ,6 , and 8 members, respectively. each department is to select a delegate and an alternate to represent the department at a conference. in how many ways can this be done?

What are the sotions to the quadratic equation 9x^2=4

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?

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?