solve the open sentence.

8 < 2b or 2b + 15 < 5

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Simplify the expression 10/11(22z) + (a+5) -1

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]