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Mice21 [21]
3 years ago
5

Each of students reported the number of movies they saw in the past year. Here is what they reported. 6, 13, 13, 19, 16, 4, 5 Fi

nd the mean number of movies that the students saw. If necessary, round your answer to the nearest tenth.
Mathematics
1 answer:
Artemon [7]3 years ago
3 0

Answer:10.9

Step-by-step explanation:You add all of the numbers together (76) and then divide by the total of numbers (7). You will get 10.85714286, you have to round to the nearest 10th , so the 5 changes the 8 to a 9.

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The first term in a geometric sequence is 54, and the 5th term is 2 / 3. Find an explicit form for the geometric sequence.
quester [9]

Answer:  ar^{n-1}=54(\dfrac{1}{3})^{n-1}

Step-by-step explanation:

The nth term for a geometric sequence is given by :-

a_n=ar^{n-1}    (1)

We are given that The first term in a geometric sequence is 54. i.e. a=54

5th term=\dfrac{2}{3}   (2)

Put n=5 and a= 54 in (1), we get

a_5=(54)r^{4}=     (3)

From (2) and (3), we have

\Rightarrow(54)r^{4}=\dfrac{2}{3}\\\\\Rightarrow r^4=\dfrac{2}{3}\times\dfrac{1}{54}=\dfrac{1}{3\times27}=\dfrac{1}{81}\\\\\Rightarrow\ r=(\dfrac{1}{81})^{\frac{1}{4}}=\dfrac{1}{3}

Explicit form for the geometric sequence: ar^{n-1}=54(\dfrac{1}{3})^{n-1}

3 0
4 years ago
Six friends share 8 fruit bars equally. How many fruit bars does each friend get?
mixer [17]

Answer:

0.75 friends per fruit

Hope this helps

8 0
3 years ago
Read 2 more answers
Rita has deposited $1000 in a bank account. At the end of each year, the bank posts interest to her account in the amount of 5%
Y_Kistochka [10]
B[0] = 1000
b[n+1] = 1.05*b[n] -10

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The fee has the effect of negating the interest earned on the first $200. Effectively, Rita's account balance in explicit form is 200 +(b0 -200)*1.05^n.
4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!
dolphi86 [110]

Answer:the answer would be C

Step-by-step explanation:

3 0
4 years ago
Ben has a marble collection. three fifths of the marbles are solid colored marbles. one fifth of the marbles are cats eyes. what
professor190 [17]
3/5 + 1/5 = 4/5 are either solid or cat eyes
4 0
3 years ago
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