Inverse is when the x's and y's are swapped.
f(7) = 22 means when x = 7, then y = 22
The inverse is when x = 22, then y = 7
f⁻¹(f(c)) means when x = f(c), then y = c
The reverse of the inverse is when x = c, then y = f(c)
answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.
since we have given that
total annual rainfall a city record = 40 inches
this year, total rainfall recorded = 37.6 inches
number of inches of rainfall is needed to match the record of 40 inches is given by
hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.
dc=6 square root of 3 and ac is 12 square root 3
c and d
square root of 3/2 = 18/c
cross multiply to get 18*2=√3*c
36/√3 * √3/√3 = c