A dress that is size x in France is equaivalent to size​ d(x) in the United​ States, where ​d(x)x32. ​(a). Find a function that will convert U. S. dress size to French dress size.
​(b) Use the inverse function to find the French size of a dress if it is U. S. size .

i.e. The inverse function

i.e. The French size of a dress if it is U.S. size 10 is 42.

Step-by-step explanation:

Given

Solving (a): The inverse function

Replace d(x) with y

Swap y and x

Make y the subject

Replace y with d'(x)

Hence, the inverse function is:

Solving (b): US size of 10

Substitute

i think the correct option is the second option.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb