A block of metal with volume 19 m3 and density 5,700 kg/m² is combined with another metal of mass 230 kg and volume 4.8 m² to form an alloy. What is the density of the alloy to the nearest integer?

1. are the triangles similar and if so why? what is the value of x? show your work.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate