Drag each scenario to the correct location on the table. Classify the given scenarios as an observational study, an experiment, or a sample survey.

Scenario A: Counties in eastern Iowa that received either an above typical or below typical rainfall in a given year are compared in terms of corn production.

Scenario B: Eight students were chosen at random from the cafeteria and asked if their favorite sport was soccer.

Scenario C: To determine which drug is most effective in treating the common cold, drug A or drug B, cold patients were randomly given one of the two drugs and the results were compared.

Scenario D: To determine which hair growth treatment was most effective in regrowing hair, GrowHair or ReGain, participants were assigned a treatment to determine which showed the most new hair growth.

Scenario E: Students who were taught reading by two different methods are compared in terms of their reading standardized test scores.

Scenario F: Ten employees are randomly selected and asked whether they would be in favor of a new management position in their department.

answers:
observational: scenario a and scenario e
experiment:scenario c and scenario d
sample: scenario b and scenario f

After a dreary day of rain, the sun peeks through the clouds and a rainbow forms. you notice the rainbow is the shape of a parabola. the equation for this parabola is y = -x2 + 36. graph of a parabola opening down at the vertex 0 comma 36 crossing the x–axis at negative 6 comma 0 and 6 comma 0. in the distance, an airplane is taking off. as it ascends during take-off, it makes a slanted line that cuts through the rainbow at two points. create a table of at least four values for the function that includes two points of intersection between the airplane and the rainbow. analyze the two functions. answer the following reflection questions in complete sentences. what is the domain and range of the rainbow? explain what the domain and range represent. do all of the values make sense in this situation? why or why not? what are the x- and y-intercepts of the rainbow? explain what each intercept represents. is the linear function you created with your table positive or negative? explain. what are the solutions or solution to the system of equations created? explain what it or they represent. create your own piecewise function with at least two functions. explain, using complete sentences, the steps for graphing the function. graph the function by hand or using a graphing software of your choice (remember to submit the graph).

Factor the polynomial by its greatest common monomial factor.

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction