Aresearcher the garden contains 90 sweet pea plants which have either white or purple flowers about 70 of the plants have purple flowers and 20 have white flowers would you expect that one plant randomly select different from the garden or have purple or white flowers explain

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.