25 marks . please help me with this Pythagoras theorem.. A triangle DEF is right- angled at E, with DE=6.7m and EF=5.5m . find the length of DF. ​

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Convert (-3,0) to polar form. a. (3,0’) b. (-3,180’) c. (3,180’) d. (3,360’)