2-4s. a 12-ft board is sawed into three smaller pieces. the longest piece is 2.5 ft longer than
the smallest one and 2 ft longer than the middle-sized one. find the length of the
middle-sized piece.

3.5 ft.

Step-by-step explanation:

Let the x ft be the length of the smallest piece then the longest piece will be x+2.5 ft and the middle piece is  x + 2.5 - 2 = x + 0.5 ft.

So we have:

x + x + 2.5 + x + 0.5 = 12

3x + 3 = 12

3x = 9

x = 3.

So the length of the middle-sized piece is 3 + 0.5

= 3.5 ft.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol