Answer:
130°
Step-by-step explanation:
a straight line is 180°
so you have
180°-50°= 130°
Answer:
4k+ 23
Step-by-step explanation:
Answer:
this copy and paste is to hard to read making it impossible to solve sorry.
Step-by-step explanation:
we know that, denominator ≠ 0
16y² ≠ 0
y ≠ 0 is excluded value.
There is a rule:
One input(x-value) can only have one output(y-value) in order to be a function.
If one input has more than one output, it is not a function.
(This doesn't apply to outputs, one output can have more than one input and still be a function)
The 1st option is not a function because the inputs 9 and 10 have more than one output.
The 2nd option is not a function because the input 3 has more than one output.
The 3rd option is a function because each input only has one output.
The 4th option is not a function because the input 5 has more than one output.
