The sin function is an odd function

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?

Determine if each number is a whole number, integer, or rational number. include all sets to which each number belongs. 4. -12. 5. 7/8