According to descartes' rule of signs, how many possible negative real roots could the following polynomial function have? f(x)=3x^4-5x^3+5x^2+5x+2 a. three or one b. three c. one d. two or zero

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

What are the exclude value of mn+3m

I'm confused on this could anyone me and show me what i need to do to solve it.