Answer:
(x) = 
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
change x to
(x) and y back to x, thus
(x) = 
Step-by-step explanation:

Answer:
Area of the triangle
5.9 sq. ft. .
Step-by-step explanation:
Length of two sides of the triangle are, 2.7 feet and 3.4 feet and the angle between them is 40° .
So, the area of the triangle is given by,
sq. ft.
sq. ft.
Answer:
a=
1/0
Step-by-step explanation: