Answer:
Step-by-step explanation:
Answer of this question is 2
Thickness of the book is ~
Refer to the attachment for solution ~
(x+1)^2-x^2=23
x^2+2x+1-x^2=23
2x+1=23
2x=22
x=11
11^2 = 121
x+1 =12
12^2=144
144-121 = 23
1, 4/5,2/5
y = 5x
Let y = 5
5 = 5x
Divide by 5
5/5 =5x/5
1=x
Let y=4
4 =5x
4/5 =5x/5
4/5 =x
Let y=2
2 =5x
2/5 =5x/5
2/5 =x
