Find a mathematical model for the verbal statement. (Use k for the constant of proportionality.)

Question

V varies inversely as the square of t.

V=

Answer 1

V = k/t^2

Answer 2

thank you! :-)

Answer 3

Find a mathematical model that represents the statement. (Determine the constant of proportionality.)
A varies directly as r2.
(A = 9𝜋 when r = 3.)