Container a has 300 liters of water, and is being filled at a rate of 6 liters per minute. container b has 900 liters of water, and is being drained at 2 liters per minute. how many minutes, m, will it take for the two containers to have the same amount of water

i think it might be a but you might want a second opinion

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

b

step-by-step explanation: