Answer:
1/10
Step-by-step explanation:
the probability of your first pick was 1/5, if not retured=ned, the probability of you getting an even number next will then be 2/4. (1/5)(2/4)=1/10
Answer:
yurrrrr
Step-by-step explanation:
ion know what to put...
Answer:
Since we know that AD =12
AC=1/2*AD
AC=6
AB=BC=1/2*AC
AB=BC=3
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6+0.3=6.3+0.02=6.32
6+0.02=6.02+0.02=6.04
that is correct because the answer is 6.32>6.04
Answer:
D. 15
Step-by-step explanation:
For this case we can begin finding the number of ways in order to select two different books for Monday and Wednesday. We know that Jill can select a book on Monday in six different ways snce she has a total of 6 books. And for Wednesday, she need another book so then can select any of the five remaining books, and the total number of ways would be:
N= 6 × 5 = 30 ways.
We are going to assume that the order no matter. If she select a book A and then another B is the same if she select first the book B and then the book A. We are interested inthe possible pairs, and if the order no matter then the total possible pairs are:
Pairs = 30 / 2 = 15
So then the best answer would be D. 15
We can also find the solution using combinations. We have a total of 6 nooks, and we want to select two so then we hav C(6, 2) ways to select two. We need to remember that the formula for combinatories is given by:

Where 
And if we replace the values we got this:
And as we can see we got the same solution from the previous part.