Which of the following scenarios demonstrates the replication of a scientific investigation?
OA
Dr. Abraham performs the same experiment in his own laboratory on five different occasions.
OB. Dr. Burgess reads about an experiment in a scientific journal. He performs a similar investigation in his own laboratory,
but he changes some of the variables.
OC. Dr. Kim performs an experiment in her laboratory. Then, Dr. Stevens performs the same experiment in his laboratory to
verify the results
OD
Dr. Jordan visits another scientist and watches the scientist perform an experiment in her own laboratory

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).