Solve equation by the quadratic formula, list the solutions, separated by commas 3z^2-z+11=6

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

x-3y=4

step-by-step e

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.