The organizer of a conference is selecting workshops to include. She will select from 9 workshops about anthropology and 5 workshops about psychology. In how many ways can she select 7 workshops if more than 4 must be about anthropology?

She can select 7 workshops if more than 4 must be about anthropology in 1716 ways.

Step-by-step explanation:

Given, The organizer of a conference is selecting workshops to include. She will select from 9 workshops about anthropology and 5 workshops about psychology.

If he select 7 workshops if more than 4 must be about anthropology, the possible combinations = (5 anthropology, 2 psychology), (  6 anthropology, 1 psychology), (7 anthropology, 0 psychology)

Number of possible combinations =

 [using formula for combinations ]

Hence, she can select 7 workshops if more than 4 must be about anthropology in 1716 ways.

correct answer:

a + bi

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step-by-step explanation: