For Exercises 75-86, write the sum using summation notation. There may he multiple representations. Use i as the index of summation. (See Example 7) x 1 + x 2 2 + x 3 6 + x 4 24 (Hint: Note the pattern produced by n ! for n = 1 , n = 2 , and so on.)
For Exercises 75-86, write the sum using summation notation. There may he multiple representations. Use i as the index of summation. (See Example 7) x 1 + x 2 2 + x 3 6 + x 4 24 (Hint: Note the pattern produced by n ! for n = 1 , n = 2 , and so on.)
Solution Summary: The author explains the summation notation for x1+
Evaluate the following expression and show your work to support your calculations.
a). 6!
b).
4!
3!0!
7!
c).
5!2!
d). 5!2!
e).
n!
(n - 1)!
Amy and Samiha have a hat that contains two playing cards, one ace and one king. They are playing a game where they randomly pick a card out of the hat four times, with replacement.
Amy thinks that the probability of getting exactly two aces in four picks is equal to the probability of not getting exactly two aces in four picks. Samiha disagrees. She thinks that the probability of not getting exactly two aces is greater.
The sample space of possible outcomes is listed below. A represents an ace, and K represents a king. Who is correct?
Consider the exponential function f(x) = 12x. Complete the sentences about the key features of the graph.
The domain is all real numbers.
The range is y> 0.
The equation of the asymptote is y = 0
The y-intercept is 1
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