In a class of 25 students, 14 have a brother and 17 have a sister. There are 5 students who do not have any siblings. What is th
e probability that a student who has a brother also has a sister?
2 answers:
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For this case we have a function of the form , where
. We must find the values of "and" according to the following function:
So:
Thus, the values are:
24,8, -12
Answer:
24,8, -12
For this case we have to, by defining properties of powers and roots the following is fulfilled:
We must rewrite the following expression:
Applying the property listed we have:
Using the property again we have to:
Thus, the correct option is option C
Answer:
Option C