AYUDA

es un examen que era para dos dias atraaas
SOLO LA 4 la 5 y la 6 porfaa

What are the sotions to the quadratic equation 9x^2=4

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Acabbage palmetto has a height of 80 feet. what is the approximate height of the tree in meters