Michael is packing his bags for his vacation. He has 6 unique books, but only 4 fit in his bag. How many different groups of 4 b
1 answer:
Answer:
15
Step-by-step explanation:
Michael has 6 unique books, but 4 not-unique slots. Since the slot is not unique, the orders you pick the 4 books are not important. When order important you use permutation but since the order is not important you use the combination. The calculation will be:
6C4 = = 15
There are 15 ways to group the 4 books.
You might be interested in
Answer:
Step-by-step explanation:
1) First, find the slope of the line. Take two points the line intersects and use them for the slope formula, . We already know the line intersects (-4, -2). Just choose any one of the points you can see the line intersecting (in this case, I chose (0,3)) and plug in its values, too. Then solve:
So, the slope is .
2) Now that you have the slope, plug in values for the point-slope formula, . In order to write a linear equation with it, the
,
, and
have to be substituted for with real values. The
represents the slope - which means that we should place
there. The
and
represent the x and y values of a point - and the questions wants us to use (-4, -2), so substitute -4 for
and -2 for
:
Thus, the answer is .