Which of the following situations represents a linear relationship? a. the value of a car is decreasing by 7 percent each year. b. the number of bacteria in a lab experiment triples every hour. c. the area covered by a circular area rug depends on the radius of the rug. d. a train travels 45 miles every hour after departing the station.

the answer is a

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).

answer: can you show the options ?

step-by-step explanation: