12 Given that
R
=
3
x
+
2
y

Find
x
when
y
=
7
and
R
=
8
x
=

6.3x+14 and 1.5x-6 answer in simplified form

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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?