Abby has two electric train sets A and B Each is on its own circular track at the same time a train and returns to its starting point at which a train be returns to its starting point every 9 seconds if the trains continue traveling what is the least amount of time in seconds that will train will arrive at the starting place at the same time

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

What is the measure of angle 1? a.28 b.152 c.168 d.64