Consider the function f (x) = x2 - 4x. If x = 3 is a value in the domain of the function, then what is the value of f (x) when x = 3?

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).

#12 the answer is the third option

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%