You dont tell me which set of numbers so it depends if the first and second in each has a sum greater than the third third is greater than them then it is the answer
Step-by-step explanation:
Given
f(x) = 5 / 2x - 1
f^-1( x) = ?
Let
y = f(x)
y = 5/2x - 1
Interchanging the roles of x and y we get
x = 5/2y - 1
2y - 1 = 5/x
2y = 5/x - 1
y = (5/x - 1)/ 2
f^-1(x) = ( 5/x - 1) / 2
Hope it will help :)
Answer:
7
Step-by-step explanation:
1/2(x)=7/2
divide both sides by 1/2
x=÷
x=·
x=14/2=7