6+2(5×-3)=10 solve the equation?

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?

Check image and write the letter of the answer