The manager at a fine arts theater has to fit 12 different performances into the upcoming season's schedule. Of all the performances, 4 are tragic play performances. If the manager randomly selects 7 shows to be performed during the first half of the season, what is the probability that exactly 2 of the chosen performances are tragic play performances?

associative property of multiplication

it should be a and d. lmk if i'm wrong xd

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

step-by-step explanation: