Answer the Following The diameter of a tree varies directly as its age. A 15-
year old tree is 21 inches in diameter. How long would
the diameter of the tree be when it is 55 years old?

-1/3(x+1)^5

i’m pretty sure this is correct

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.