3 and a number that = 28 Let the number be n
3 + n = 28
n = 28 - 3
n = 25
The quotient of 25 and the sum 3 and a number
Sum = 25 + 3 = 28
Quotient = 25 / 28
This is a difference of squares. Every time you have the difference between two squares, you can factor it as the product between the sum and the difference of the roots:
In your case, the squares are
So, the difference between the squares, 
can be written as the multiplication between the sum and difference of the roots:
Rewriting the question, the given lengths that were cut from the board were 30 3/4 inches, 12 1/4 inches, and 16 1/4 inches. To obtain the remaining length of the board, all of the measurements cut are to be added and subtracted from 72 inches. This is shown below:
30 3/4 + 12 1/4 + 16 1/4 = 237/4 = 59.25 inches.
Remaining length of board = 72 - 59.25 = 12.75 inches.
Therefore, there will be 12.75 inches remaining of the board.
The radius can be found with the Pythagorean theorem. Assuming r is the radius, 14²+r²=17². Multiply it out to 196+r²=289. Subtract 196 from both sides and you're left with r²=93. So, r=√93, or about 9.6 to the nearest tenth.
Answer:
315
Step-by-step explanation:
