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Mila [183]
3 years ago
10

Find the nth term of this quadratic equation 3, 11, 25, 45

Mathematics
1 answer:
Helen [10]3 years ago
6 0

Answer:3n^2-n+1

Step-by-step explanation:

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Ten experts rated a newly developed chocolate chip cookie on a scale of 1 to 50. Their ratings were: 34, 35, 41, 28, 26, 29, 32,
miskamm [114]

The mean deviation of the ratings is  4.12

<em><u>Explanation</u></em>

The ratings of the ten experts are:  34, 35, 41, 28, 26, 29, 32, 36, 38 and 40

So, the mean of all ratings =\frac{34+35+41+28+26+29+32+36+38+40}{10}= \frac{339}{10}=33.9

<u>The formula for Mean deviation</u> = \sum \frac{|x_{i}- \mu|}{N} , where x_{i} is the given data from i=1 to i=10 , \mu is the mean of the data and N is the total number of data. So.....

|x_{1}-\mu |= |34-33.9|=0.1\\ |x_{2}-\mu|=|35-33.9|=1.1\\ |x_{3}-\mu |=|41-33.9|=7.1\\ |x_{4}-\mu |=|28-33.9|=5.9\\ |x_{5}-\mu |=|26-33.9|=7.9\\ |x_{6}-\mu |=|29-33.9|=4.9\\|x_{7}-\mu |=|32-33.9|=1.9\\ |x_{8}-\mu |=|36-33.9|=2.1\\ |x_{9}-\mu |=|38-33.9|=4.1\\ |x_{10}-\mu |=|40-33.9|=6.1

So, the Mean deviation =\sum \frac{|x_{i}-\mu |}{N}=\frac{0.1+1.1+7.1+5.9+7.9+4.9+1.9+2.1+4.1+6.1}{10} = \frac{41.2}{10}=4.12

4 0
3 years ago
Sarah wants to
storchak [24]

Answer:

7

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
3 over 4 open parentheses 1 half x space minus space 12 close parentheses space plus space 4 over 5
lesantik [10]

For this case we have the following expression:

\frac {3} {4} (\frac {1} {2} x-12) + \frac {4} {5}

Rewriting the expression we have:

We apply distributive property to the terms of parentheses:

\frac {3} {8} x- \frac {36} {4} + \frac {4} {5}\\\frac {3} {8} x-9 + \frac {4} {5}\\\frac {3} {8} x- \frac {41} {5}\\

Answer:

\frac {3} {8} x- \frac {41} {5}

4 0
2 years ago
Should the dress code for Pizza Hut employees be enforced? ( BIASED OR UNBIASED)
Sholpan [36]

Answer:

yes

Step-by-step explanation:

Having a dress code is very important for the workers because it makes it much easier to spot them and get the help you food. Plus it keeps the hair out of your food soooo-

++

6 0
2 years ago
Read 2 more answers
Three sisters each purchase two dresses and a purse. The purse costs 26.00. If the grand total was 205.50, how much did each dre
VLD [36.1K]
205.50-26= 179.5
179.5/2= 89.75 $ for each dress
3 0
3 years ago
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