What is the length of the diagonal, ddd, of the rectangular prism shown below?
Round your answer to the nearest tenth.

≈ 9.6 units

Step-by-step explanation:

Refer to attachment

The diagonal d is the hypotenuse of right triangle with sides of 5 and a

The line a is the hypotenuse of the right triangle with the sides of 2 and 8.

So, as per Pythagorean theorem:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5