Two observers are 600 feet apart on opposite sides of a flagpole. The angle of elevation from the observers to the top of the pole are 18° and 20°. Find the height of the flagpole

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line