Fill in the blanks.
We find the surface area of an object by calculating the area of each face and then
?
adding
averaging
folding
multiplying
them.
In economics,
?
cubic polynomials
decreasing lines
demand curves
inverse-square functions
are often used to model cost functions.
The flattening of a cost function in its midrange is a result of
?
consumer surplus
economy of scale
inflation
measurement error
.
A smooth curve connecting given points by cubic polynomials is called a
?
cubic spline
elastic demand
a catenary
an ogive
.