Acertain legislative committee consists of 10 senators. a subcommittee of 3 senators is to be randomly selected. how many different subcommittees are possible

120 different sub committees are possible.

Step-by-step explanation:

This equals the number of combinations of 3 from 10, 10C3.

10C3 =  10! / 7!3!   or we can work it out  as  10*9*8 / 3*2*1 = 120.

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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