The piece use function h(x) is shown on the graph what is the value of h(3)?

h(3) = 1

Step-by-step explanation:

To find h(3), that is the value of h(x) when x = 3

Locate x = 3 on the x- axis, go vertically up to meet the graph of h(x) at (3, 1 )

Thus when x = 3, y = 1, that is

h(3) = 1

Let x be the 10% solution and y be the 4% solution..1x + .04y = .07(4)x + y = 4these are going to be the two equations! then you have to solve the equations.6y = 1.2y = 2plug this into the 2nd equation and you would get x = 2.  overall, the chemist must mix 2 liters of the 10% solution with 2 liters of the 4% solution to get 4 liters of the 7% solution.