+4.31. Let a(s) be a unit speed curve with kt = 0. Prove there is a curve
B(s) (s not arc length on B) so that a and B are Bertrand curves if and
only if there are constants 2 #0 and u with 1/2 = K + ut.
T
itan Dhan aviat

Find the distance between (7,-6) and (-3,-9)

What are the greatest common factor of 75 and 30

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.