You are creating concrete planters for a
garden border by placing the concrete in a large
cube and then placing a smaller cube inside. the
amount of concrete you need can be found using
the expression - y where is the volume of the
larger cube and v is the volume of the smaller
cube. how much concrete do you need to make
one planter?

2044 cubic inches

Step-by-step explanation:

The amount of concrete required is the larger volume MINUS the smaller volume.

Note: Volume of cube = s^3 where s is the side length

Larger Volume = s^3 = 15^3 = 3375

and

Smaller Volume = s^3 = 11^3 = 1331

Hence, amount of concrete needed to make 1 planter = 3375 - 1331 = 2044 cubic inches

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !