Which set of numbers form a right angle? Choose ALL that apply. A.1, 2, 3
B.3, 4, 5
C.15, 20, 25
D.6, 8, 10
E.8, 15, 18

True or false? many triangular shapes can be circumscribed about a given circle

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

(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