Aseries circuit is composed of three resistors:
r1= 7
r2 = 6
r3 = 11
a 12-volt battery is connected across the three resistors.
find the total resistance rt.
a. 2.5
b. 0.40
c. 24
omega

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)