Cost Find a formula C(x, y, z) that gives the cost of materials for the closed rectangular box in Fig. 7(a), with dimensions in feet. Assume that the material for the top and bottom costs $3 per square foot and the material for the sides costs $5 per square foot.

C(x,y,z)=6xy+10xz+10yz

Step-by-step explanation:

See the figure and detailed steps in attached pictures.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2