Answer:
The expected value for the number of times Todd attends a concert during a month is 0.5.
Step-by-step explanation:
We have these following probabilities:
5% probability of attending a concert twice a month, which means that P(X = 2) = 0.05
40% probability of attending a concert once a month, which means that P(X = 1) = 0.4
55% probability of not attending a concert during the month, which means that P(X = 0) = 0.55
What is the expected value for the number of times Todd attends a concert during a month?
We multiply each value by its probability. So

The expected value for the number of times Todd attends a concert during a month is 0.5.
We know the formula for compound interest as

Now, we have been given that Ellen has $125. It means we have
P = $125
From the given directions, we have

On substituting these values in the above mentioned formula, we have

Therefore, Ellen would have $240.08 after 8 years.
The answer would be 11/25
Answer:
Step-by-step explanation:
the product is a result of multiplication....so lets multiply
x^2 (x^4 + x^2 - 1) =
x^6 + x^4 - x^2
ok...his mistakes are occurring because he is multiplying the exponents when he is supposed to be adding them.
exponent rule : x^a * x^b = x^(a + b)
Answer:
41
Step-by-step explanation:
4x +5 = 7x -22
5 = 3x -22
27 = 3x
x = 27/3
x = 9
4(9) + 5 = RS
36+ 5 = RS
RS = 41