An aquarium has a length of n^ 2 +2 inches, a height of n + 5 inches, and a width of 10 inches. what is the volume, in cubic inches, of the aquarium, in terms of n ?

The formula of a volume of a rectangle prism:

l - length

w - width

h - height

We have

Substitute:

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )