German Silver is an alloy composed of nickel, zinc, and copper in a 3:4:13 ratio. How many kilograms of each metal are needed to make 4 kg of this alloy?

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

What is not true about kl and mn? what is mn? (show )

Find the value of x. round the length to the nearest tenth