Answer:
Under 800 square feet of carpet to be cleaned: $0.53 per square foot
800 - 1,500 square feet: $0.49 per square foot
Over 1,500 square feet: $0.42 per square foot
Stairs (standard size): $4.16 each stair
Let y=4x-1
The inverse is basically expressing x in terms of y.
y=4x-1 =>
y+1=4x
x=(y+1)/4
Since the inverse is still a function of x, we only have to interchange x and y
inverse of f(x) = f^-1(x) = (x+1)/4
Given:
The equation is

Find-:
The solution of the equation
Explanation-:
The first equation is

The second equation is

Both equations are the same.
For slove, the two unknown variables need two equations.
So,
There is NO SOLUTION
Y=mx+b
Y is the intercept: for example (0,7) intercept is 7 for y. The y intercept is always x=0 and y=number
x=0 could be a solution or a x intercept.
Height is always the y value in a graph
Vertex is the point at which a parabola changes direction.
Hope this helps please like and brainiest if good!
The formula of interest is
A = (1/2)r²·θ
You have r = 9 m, θ = 3π/5. Then the area is
A = (1/2)(9 m)²(3π/5) = 24.3π m²
The sector area is ...
A ≈ 76.3 m²