Answer:
B
Step-by-step explanation:
107 and y form a straight angle and are supplementary, thus
107 + y = 180 ( subtract 107 from both sides )
y = 73
The sum of the interior angles of a quadrilateral = 360°
Sum the given angles and equate to 360
117 + 79 + 73 + x = 360, that is
269 + x = 360 ( subtract 269 from both sides )
x = 91
Thus x = 91, y = 73 → B
Answer:
x = 19/3
Step-by-step explanation:
30 - 11 = 3x
3x = 19
x = 19/3
hope it helps!
Because they are apart of the euclidean plane. <span />
Answer:

And we can use the probability mas function and we got:
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want this probability:

And we can use the probability mas function and we got: