Explain why an angle that is supplementary to an acute angle must be an obtuse angle

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

What is the factored form of the following expressions? d^2 – 13d + 36

Yvaries directly as x. y =90 when x=6. find y when x=13