Using the right triangle below find the cotangent of angle A

(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

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?