The surface area S of a cube with edge length x is given by
S(x) = 6x2
for x 0. Suppose the cubes your company manufactures are supposed to have a surface area of exactly 42 square centimeters, but the machines you own are old and cannot always make a cube with the precise surface area desired. Write an inequality using absolute value that says the surface area of a given cube is no more than 3 square centimeters away (high or low) from the target of 42 square centimeters.

Question

The surface area S of a cube with edge length x is given by 
S(x) = 6x2
 for x > 0. Suppose the cubes your company manufactures are supposed to have a surface area of exactly 42 square centimeters, but the machines you own are old and cannot always make a cube with the precise surface area desired. Write an inequality using absolute value that says the surface area of a given cube is no more than 3 square centimeters away (high or low) from the target of 42 square centimeters.

anonymous · Answer

rachel4 - i solved the trig identity problem for you

anonymous · Answer

thank you so much! do you know how to do this one?

anonymous · Answer

thank you so much! do you know how to do this one?