Father has two apples, three pears, and two oranges. Every morning, during one week, he gives one fruit to his son for breakfast. How many ways are there to do this?

210

Step-by-step explanation:

Since the condition does not state an opposite, I should assume that the apples are not distinguishable, same as the pears and the oranges.

So we have permutations of 7 fruits with 2 indistinguishable apples, 3 indistinguishable pears and 2 indistinguishable oranges.

The number of distinguishable arrangements is

   7                    1x2x3x4x5x6x7

                          = 210

2x3x2                   2x6x2

Answer.  There are 210 ways to do it.

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step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c