Use the table to evaluate the expression g o g2 A spherical

Use the table to evaluate the expression. (g o g)(2) A spherical weather balloon is being inflated. The radius of the balloon is increasing at the rate of 7 cm/s. Express the surface area of the balloon as a function of time t(in seconds). (Let S(0) = 0.) S(t) = cm^2

Solution

to calculate gog(2) \\ first we need to find out g(2).

so from table g(2) = 5

now for gog(2) = g(5) = 4

answer =4

2) surface area of ballon = 4r²

now given R = 7t

so

s(t) = 4 (7t)² = 196t²