Sally has 3 dozen fig trees which she planted in 4 rows how many trees were in each row?
2 answers:
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Answer:
43,680 ways.
Step-by-step explanation:
We have been given that an experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. We are asked to find the number of groups of 4 participants that can be chosen, assuming that the order in which the participants are chosen is irrelevant.
We will use permutations formula to solve our given problem.
For our given problem and
.
Therefore, 4 participants can be chosen in 43,680 different ways.
The region in the <em>x</em>-<em>y</em> plane is the set of points
The height of the solid falls between the <em>x</em>-<em>y</em> plane (for which <em>z</em> = 0) and the equation of the plane, <em>z</em> = 3<em>x</em> + 2<em>y</em>.
So the volume is
