Recursive function f(n+1)=1/3 f(n) if f (3)=9 what is f(1)

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}