Use the distance formula and calculate the distance between the following two points(Leave answers as decimals or in radical form) 1) B(0,0) C(3,4)

2) A(-2,-3) B(-4,7)

3) K(0,-4) L(4,6)

4) H(-17,5) I ( -12,-12)

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Which of the following of the following sets of side lengths could not form a triangle?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?