Hypothesis testing question

Question

Question: the claim is that less than 40% of students pass math. Data: in a random sample of 11 students 1 of them passes math. Formally test this claim at the alpha= 0.5 level. 

State the null and alternative hypothesis. 

Define the random variable X 



Calculate p-value ( if necessary)


Please explain the steps I have to take

Answer 1

One leg of a triangle is 2milimeters shorter than the hypotenuse is 2 militers longer leg find the lengths of the sides of the triangle .