Question

The pyramid shown has a square base with sides (3y-4)cm and a vertical height of 6 cm.The total volume of the pyramid is 32cm^3. @sammixboo

Answer 1

i got 18y^2-48y=0

Answer 2

this is my working

Answer 3

Wait what are you trying to find?

Answer 4

write down a quadratic equation in terms of y. sorry

Answer 5

\[\frac{ 1 }{ 3 }(6)(3y-4)^2=32\]

Answer 6

\[2\left[ (3y-4)(3y-4) \right]=32\]

Answer 7

I believe that is correct from what I did. I just want a second opinion

Answer 8

\[2(9y^2-24y+16)=32\]
\[18y^2-48y+32=32\]

Answer 9

Yes

Answer 10

I believe you are correct

Answer 11

thnx @sammixboo :)

Answer 12

No problem :)