A 7 kg bicycle moving at 11 m/s strikes a stationary 2000 kg car. The bicycle bounces backwards at 3 m/s. What is the velocity of the car after impact?

What is the equation of the graph below? y=sec(x)-4

Anyone know? is appreciated! will mark brainliest if correct!

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%