Answer:
a(2) b(-3) c(3) d (-2)
Step-by-step explanation:
first one remember that when u ÷ two negatives it becomes positive
second one try to invert and then multiply the fractions
third one try to invert and then multiply the fractions
fourth one remember that if you ÷ by one negative the product will be negative
Answer:
a) 18 in x 18 in x 18 in
b) 
Step-by-step explanation:
a) Let's call 's' the side of the square base and 'h' the height of the solid.
The surface area is given by the equation:

The volume of the solid is given by the equation:

From the volume equation, we have that:

Then, using this value of h in the surface area equation, we have:


To find the side length that gives the minimum surface area, we can find where the derivative of S in relation to s is zero:





The height of the solid is:

b) The minimum surface area is:


Answer:
a b c
Step-by-step explanation:
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