Consider an ac circuit consisting of a power supply and a resistor. if the current in the circuit at time t is i, sin wt, then the
power delivered to the resistor is 1, rsinº wt, where r is the resistance. express the power in terms of cos 2wt.
c. p=1,r+1,ʻr cos2wt
a p=*r+* 1, r cos 2wt
b. p=1,38-rocos 2wt
d.
p=1/r-10r cos 2wt

Can someone answer these problems for me

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15