A group of students designed a study to decide which restaurant was preferred by teenagers. To gather data, the students planned to visit a number of restaurants and keep a tally of how many teenagers were at each restaurant.
which type of research design does the study use?
O A sample survey
OB stratified survey
O c. experimental study
O D. observational study

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

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

step-by-step explanation:

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).