I have no idea how to solve this, please do a detailed explation (thats why i am offering 100 points)

3408

y=a+bX is the regressional equation i think

Step-by-step explanation:

you just need to plug 13 in for x and divide 3.25 by 11076.

Hope this helps.

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).

not sure but it may be b, as i said i'm not sure.