Pls help peeps would be appreciated

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

If you apply the below transformations to the square root parent function, f(x) = vx, what is the equation of the new function? • shift 12 units right. • shift seven units down.

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2