7. Which of the following relations represent
functions?

it’s the 1 question

Step-by-step explanation:

Functions have a single output for each input

A No  example: C maps to 16 or 17

B Yes

C Yes

D Yes

E No   example: x = 4 maps to either y = +4 or 7 = -4

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value