May is tornado month in Oklahoma. According to the National Weather Service, on average in May, the number of tornadoes in Oklahoma is 21.7 tornados. Consider the random variable X the amount of time (in days) until the 10th tornado occurs. What is the standard deviation of the number of days before the 10th tornado?

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

step-by-step explanation:

can you put the picture up?

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