30 points picture attatched
1. consider the quadratic equation 3x^2 – 6 = 2x . (a) what is the value of the discriminant? (b) what does the discriminant of the quadratic equation tell about the solutions to 3x^2 – 6 = 2x

What are the domain and range of the functiony = 2(x - 3)2 + 4?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.