The surface area of a three-dimensional figure is the sum of the areas of all its surfaces. true or false?

Consider the function f(x)=-5x+3 what is f(-2)

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Which expression gives the exact value of x?