Answer:

Step-by-step explanation:
We know that:
In a deck of 52 cards there are 4 aces.
Therefore the probability of obtaining an ace is:
P (x) = 4/52
The probability of not getting an ace is:
P ('x) = 1-4 / 52
P ('x) = 48/52
In this problem the number of aces obtained when extracting cards from the deck is a discrete random variable.
For a discrete random variable V, the expected value is defined as:

Where V is the value that the random variable can take and P (V) is the probability that it takes that value.
We have the following equation for the expected value:

In this problem the variable V can take the value V = 9 if an ace of the deck is obtained, with probability of 4/52, and can take the value V = -1 if an ace of the deck is not obtained, with a probability of 48 / 52
Therefore, expected value for V, the number of points obtained in the game is:

So:

C=2πr and x^2+y^2=r^2
r=4 because of the equation (16)^1/2 is 4
C=8π
A variable is an English letter we take for unknown values or quantities.We are given expression :
.
In the above given expression we have x and y English letters, because we don't know the values of them.
And we have some constant in front of those English letters.
We have
in front of xy.
<em>The coefficients are the constant numbers in front of variables.</em>
<h3>Therefore,

is the coefficient of the term

.</h3><h3>Therefore, correct option is a. 6/7.</h3>
Answer:
i remember this question you have to divide and when i did that exact question my test i got it right!
Step-by-step explanation:
Answer:
y = mx + b
therefore, the equation is y = -2/3x - 1
the -2/3 got the x because it is the slope and if you look at the formula, it tells you.
y-intercept is the starting point (b)
Step-by-step explanation: