Which pairs of functions are inverses of each other? choose all that are correct.

C and D

Step-by-step explanation:

We have to find pairs of functions which are inverses of each other.

1. and

Suppose y=f(x)

y replace by x

Then , we get

Hence, f(x) and g(x) are not inverses to each other.

B., and

Suppose,

Therefore,

Hence, f(x) and g(x) are not inverses to each other.

C. and

Suppose ,

Therefore,

Hence, f(x) and g(x) are inverses of each other.

D. and

Suppose ,

Therefore,

Hence, f(x) and g(x) are inverses to each other.

add an image

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.