Answer:
3/2
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
Solve
x - 5 = 2 ( add 5 to both sides )
x = 7, thus
6x - 20
= 6(7) - 20 = 42 - 20 = 22
C because it ends. It stops at 10.101 so it isn't going on forever
Answer:
The probability of getting 4 or more days when the surf is at least 6 feet is 0.544
Step-by-step explanation:
We can modelate this exercise as a binomial random variable.
The probability function of a binomial random variable is :
Where is the probability of the variable X to assume the value r
nCr is the combinatorial number define as
n is the number of binomial experiments that we make. In our exercise, n is the number of random days we pick of January.
And finally p is the success probability.
In our exercise, we define X : ''The number of days when the surf is at least 6 feet''.
And we are looking for P(X≥4).
P(X≥4) = P(X = 4) + P(X = 5) + P(X = 6)
Finally
P(X≥4)=
P(X≥4) = 0.544
Let
x--------> The number of red marbles
y--------> The number of blue marbles
we know that
equation
equation
equate equation and equation
therefore
the answer is
The number of red marbles is
The number of blue marbles is
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