Let a and b be sets. let f : a ? b. recall that f^1 : p(a) ? p(b) is defined by f^1(s) = {f(x)| x ? s}.
(a) prove that if f is an injection, then f^1 is an injection.
(b) prove that if f^1 is an injection, then f is an injection.
(f^1) is just symbol. i can not type actual symbol, so i just change that.
( > )
( f ) orignal symbol is like that. arrow is above f

easy math just plug in a and b

step-by-step explanation:

answer is d-29

step-by-step explanation:

since you didn't include the picture, i can give you the description so you know how to pick the correct answer. the third quartile of a data is always shown in a box plot. in the middle of your graph should be a box. the third quartile is the value that goes with the far right edge of the box.

is this part of a question or something

well what you have to do is divide 84 by 6 so theanswer

step-by-step explanation:

84 divided by 6 = 14

and that lightbulb changing party must be freaking lit!