Answer:
2±√13
Step-by-step explanation:
9/x=x-4
x² -4x - 9=0
x² -4x +4- 13=0
(x -2)²=13
x-2= ±√13
x= 2±√13
If you would like to know how many paperback books did the store sell in a month, you can calculate this using the following steps:
paperback books: 70% of the sold books = 70% of 1,250 books = 70% * 1,250 = 70/100 * 1,250 = 875 books
The correct result would be 875 paperback books.
scalar multiplication, now, add them up
on the number line the numbers to the left have least value