Let f(x)=10x-10 find the value of (fof^-1)(-10)

(f o  f^-1  (10))  =  10

Step-by-step explanation:

f ^ -1  =  (x + 10)/10

from solving  from  f(x) = 10x - 10

since  10x - 10  is a  one-to-one function  it has an inverse

so  f o  f^-1  (x)  =  x

(f o  f^-1  (10))  =  10

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: