Pls me asal for all ! (must show work for ) + lots of

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2