Answer:
-4y - 7
Step-by-step explanation:
Combine like terms. Note that there is one term with a variable (y), and two constant terms. Combine the constant terms. Note that one positive and one negative sign will result in a negative sign:
-4 + (-3) = -4 - 3 = -7
-4y - 7 is your answer.
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Answer:
Using the height theorem:
Now we can easily use the pythagorean theorem:
Answer:
It is C
Step-by-step explanation:
Answer:
4154
Step-by-step explanation:
Given the expression:
and x=63
We simply substitute x=63 into the expression to obtain the code.
When x=63
The code is 4154.
Answer:
a)
b)
c)
Step-by-step explanation:
The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"
Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:
Part a
For this case we want this probability
Part b
For this case we want this probability:
If we find the individual probabilities we got:
And replacing we have:
Part c
For this case at least 4 trials means that the random variable X needs to be 4 or more
And we found already the probabilities P(X=1),P(X=2) and P(X=3) so we just need to replace: