H(x)=-0.5x^2+10x+20

What is a word problem that can be for this equation

And what are the: x and y values, x and y intercepts, the vertex, and domain and range?

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters