1.
Let A be the set of all students of a boys school. Show that the relation R in A
given by R = {(a, b): a is sister of b} is the empty relation and
R' = {(a, b) : the difference between heights of a and b is less than 3 meters) is
the universal relation.

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Find the missing dimension! need asap! tiny square is a =3025 in ²

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1