the pie chart shows the age distribution in a village of 120 people. what percentage of the villagers are under 25

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.