Ageologist had two rocks on a scale that weighed 3.3 kilograms together. rock a was 0.1 of the total weight. how much did rock a weigh?

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

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?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?