What is the slope of a line that is perpendicular to the line y-4= 3/4(x+2)

In the 30-60-90 triangle below side s has a length of and side r has a length

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

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above