7.2 * 10^−3 is how you would write 0.0072 in scientific notation
Answer:
I think 2
Step-by-step explanation:
y=15 and x=3 5x3=15 and 2x2=4
A 10x7 =70 and u use i-ready cool
Using the combination formula, it is found that he can make 4 different stacks.
The order in which the balls are selected is not important, as stated in the problem. hence the <em>combination formula</em> is used to solve this question. If the order was important, then the permutation formula would be used.
<h3>What is the combination formula?</h3>
is the number of different combinations of x objects from a set of n elements, given by:

In this problem, he has four flavors, and will choose three of them for the stacks, hence the number of different stacks is given as follows:

He can make 4 different stacks.
More can be learned about the combination formula at brainly.com/question/25821700
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