Answer:
0.4762
Step-by-step explanation:
There are 9C5 = 126 ways to choose 5 candidates to give speeches. There are (5C3)(4C2) = 60 ways that 3 of those candidates can be biology majors (and the other two can be non-biology majors). The probability of interest is ...
60/126 ≈ 0.4762
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nCk = n!/(k!(n-k)!)
9514 1404 393
Answer:
1) 2/7√((x+3)^7) +C
2) 2√(x+5) +C
Step-by-step explanation:
The power rule applies.
∫u^n du = u^(n+1)/(n+1)
1)

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2)

The system is inconsistent because it has no solution. So the third option.
One eighth divided by five equals five eighths.