HELPPP
A pet shop had 8 identical fish tanks in the shape of rectangular prisms. The width and height of each tank was (x – 7) inches and the length was 8 inches more than its width. The expression below shows the maximum amount of water which all the tanks together can hold.

8(x + 1)(x - 7)^2

What does the factor (x + 1)(x – 7)^2 represent?

A. The volume of each tank.

B. The volume of all the tanks.

C. The surface area of each tank.

D. The total surface area of all the tanks.

Question

HELPPP
A pet shop had 8 identical fish tanks in the shape of rectangular prisms. The width and height of each tank was (x – 7) inches and the length was 8 inches more than its width. The expression below shows the maximum amount of water which all the tanks together can hold.

8(x + 1)(x - 7)^2

What does the factor (x + 1)(x – 7)^2 represent? 

A. The volume of each tank. 

B. The volume of all the tanks. 

C. The surface area of each tank. 

D. The total surface area of all the tanks.

anonymous · Answer

@hero

hero · Answer

Hi @Savannahrj

anonymous · Answer

Can you answer my question pretty please. @hero

hero · Answer

Okay, so @Savannahrj, what do you think it represents?

anonymous · Answer

D?

hero · Answer

Okay, I don't want to help you guess...

In the problem they tell you what the length, width, and height of each tank represent. Do you remember what they are?

anonymous · Answer

The width and height were (x-7) and the length was 8 inches more than the width

hero · Answer

Okay, so if (x + 1)(x - 7)(x - 7) are the length, width, and height multiplied together, what formula reflects this?

anonymous · Answer

The surface area of each tank..

hero · Answer

$$\text{Volume}_{\text{rect prism}} = {l}{w}{h}$$

anonymous · Answer

Volume of all the tanks?

hero · Answer

You're not a very good guesser.

anonymous · Answer

I DONT KNOW HOW TO DO THIS SORRY OMG