Answer:
Step-by-step explanation:
Use the distance formula for coordinate geoemetry and the fact that x1 = 3, y1 = 5, x2 = 6 and y2 = 8 to fill in the formula:

fills in accordingly:

which simplifies a bit to

which is

The square root of 18 simplifies down to
, which is 4.2426 in decimal form
Pythagorean Theorum since that is what you are trying to prove.
Answer:
2 books
Step-by-step explanation:
If 7 books= 1 box
Then 30 books= 30÷7= 4 boxes with a remainder of 2 books
Therefore books left over= 2 books