IM STUCK! Which equation is perpendicular to 5x−10y=6

and passes through (2, 1)

y=−2x−5

y=12x−5

y=−2x+5

y=12x+5

Just tell me how to set up the equation.

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)