9. let x = {1, 2, 3}, y = {1, 2, 3, 4}, and z = {1, 2}. a. define a function f : x → y that is one-to-one but not onto. b. define a function g: x → z that is onto but not one- to-one. c. define a function h: x → x that is neither one-to-one nor onto. d. define a function k: x → x that is one-to-one and onto but is not the identity function on x.

10000

step-by-step explanation: divide by 2,

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180