What is the volume of 1.5 Tonne of sand of density 2600 kg/m3?  

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

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?