The nth term of a sequence is n^2+12n+27 By factorising, or otherwise, show that the 20th term can be written as the product of two prime numbers. Input note: write down the 20th term as the product of two prime numbers.

Answer this question! 30 points and brainliest! only if you know the answer.

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters