Which of the following quadrilaterals must be a parallelogram according to the minimum requirements?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

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.