An isosceles triangle is when 2 angles are the same measure. an triangles angle equal to 180 degrees. therefore angle A is 80 degrees as well as angle B equals 80 degrees. since the angles of a triangle equal to 180 you subtract the two known angles to find angle C. So 180-80-80 which equals to 20.
Therefore angle C=20 degrees
A straight line is 180. To find the angle of b, you minus 39 from 180.
180-39=141
The answer is b=141
Answer:
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Answer:
They are inverse functions
Step-by-step explanation:
A property of inverse functions is that if 
We can plug in x = 3
That means that, supposing they are inverse functions, g(7) should equal 3
It checks out
Another way to see if two functions are inverse is to swap the x and y of one of the functions.
ex. 
Since, after the swap, the functions are equal, we know it is an inverse function
Answer:
x=
−1
/2
y+4;all real numbers are solutions
Step-by-step explanation:
x=
−1
/2
y+4
4x+2y=16
4(-1/2y+4)+2y=16
all real numbers are solutions
