What is the perimeter of the rectangle shown below?
1 answer:
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Since the order of the books chosen doesn't matter, we use the combination formula to find the number of possible selections. Recall that a combination of k items from a set of n items is given by 
.
In this problem, n = 8 and k = 3. So the number of possible selections is
. Thus the answer is 56.
In this problem, n = 8 and k = 3. So the number of possible selections is
Answer:
Step-by-step explanation:
In order to solve this exercise it is important to remember that the "Repeated addition" is about adding equal groups of numbers.
Therefore, you can solve a mulitplication using the Repeated addition by repeat the same number "n" times in order to find the result..
In this case, you have the following multiplication given in the exercise:
You can observe that the number 34 is multiplied by 4. This indicates that the result is four times 34.
Then, based on the explained at the beginning of this explanation, you can conclude that you can also solve the given multiplication by repeating the number 34 four times and then adding the groups.
Therefore, you get: