Convert from standard form to vertex form and pls show work :) 1. f(x) = 4x²+ 8x -3
2. f(x) = -x -4 + 1

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

The value √10 and √15 are plotted on the number line

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.