What is the solution of the system of equations? y = 6x2 + 3x – 11
у =3x-5
-
А
(x, y) = (1, -2) and
(x, y) = (-1, -8)
B
(x, y) = (1, -1)
С
(x, y) = (-2, 1) and
(x, y) = (-8,-1)
D
(x, y) = (-1,-8)

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables