2. Saeed and Mohammed sit for an examination in History. Mohammed has a 90% chance of passing and Saeed has a 60% chance of passing. Determine the probability that:

a. Both pass

b. Both fail

answer: 298143

step-by-step explanation:

she gotta workk that a 2

step-by-step explanation:

you have to put the graph on here with the question

step-by-step explanation:

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