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which of the following is true? (5 points)

tangent is positive in quadrant i.
sine is negative in quadrant ii.
cosine is positive in quadrant iii.
sine is positive in quadrant iv

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?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

If f(x)=3 over x+2 - square root x-3 then f(7)=