One column of numbers consist of 2842 and 14 when the digits of the two numbers are added together the result is 2+8+4+2+ one +4 equals 21 and when the digits of 21 are then added together the end result is 2+1 = 3 if the same process is performed on the numbers in the second column what can be concluded

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?

Which of the following parabolas opens up?

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?