You are conducting a study on the health of people who have been exposed to radiation and those who have not been exposed to radiation. Which of these methods of obtaining data should you most likely adopt and why? A. an observational study because it involves the pre-existing condition of the subjects.
B. an experimental study because it will give the most accurate results.
C. an experimental study because results can be obtained much faster using this technique.
D. a sample survey with only people who were not exposed to radiation because it involves random selection.
E. a sample survey with only people who were exposed to radiation because it involves random selection.

(3x-8) or (3x+8)

step-by-step explanation:

the equation of the parallel line would be y = 2x + 9

step-by-step explanation:

to start we need to find the slope of the original line. we can do that by looking at the coefficient of x, which is 2

since the slope of the original line is 2 and parallel lines have the same slope, we know the new line will also have 2 slope. now we can use that along with the point given in point-slope form to get the find equation.

y - y1 = m(x - x1)

y - 5 = 2(x + 2)

y - 5 = 2x + 4

y = 2x + 9

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.

wait this depends wether emily and zach how they are thinking.

yes they are the same.