5 - (-9 ) subtracting intergers
2 answers:
You might be interested in
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:
Answer:
Explanation:
a) The GCF of 63 and 36 is 9
b)
a) To find the GCF of 63 and 36, we do the following:
Write 63 and 36 as follows:
The common factors are:
Therefore, the Greatest Common Factor (GCF) is 9
b) To find the factor 63 - 36