Taletha is preparing for an exam in Algebra II. She knows she will be expected to

Option (4).

Step-by-step explanation:

If a function is f(x) = 7x - 3

Inverse of the function will be,

g(x) = =

Now composite function f[g(x)] =

                                                   = x

And g[f(x)] =

                 = x

Hence, condition for the inverse functions will be,

f[g(x)] = g[f(x)] = x

Therefore, Option (4) will describe the the composition of two functions.

The length of the side y is 8.

Step-by-step explanation:

Use cosine to find the distance of y:

= cos 45

= 0.70711

y = 0.70711 * 8

y = 8