For a short time after a wave is created by wind, the height of the wave can be modeled using y = a sin , where a is the amplitude and t is the period of the wave in seconds. 13. how many times over the first 5 seconds does the graph predict the wave to be 2 feet high? (show work)

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]