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Nezavi [6.7K]
3 years ago
11

5.4= 0.9x A.6.3 B. 6 C. 7.3 D.12

Mathematics
2 answers:
exis [7]3 years ago
8 0
5.4=0.9x=
A.)6.3
B.)6
C.)7.3
D.)12
The answer is b
Marat540 [252]3 years ago
4 0

Answer:

5

.

4

=

0

.

9

5.4=0.9x

5.4=0.9x

5

.

4

=

9

1

0

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Use a transformation to linearize this equation and then employ linear regression to determine parameters a and
uysha [10]
Given the equation

y=\left( \frac{a+\sqrt{x}}{b\sqrt{x}} \right)^2

which models the data tabulated below:

\begin{tabular}
{|c|c|}
x&y\\[1ex]
0.5&10.4\\
1&5.8\\
2&3.3\\
3&2.4\\
4&2
\end{tabular}

The linear regression equation is given by

y=a+bx

where: b= \frac{\Sigma xy-n\bar{x}\bar{y}}{\Sigma x^2-n\bar{x}^2} and a=\bar{y}-b\bar{x}

We extend the given table as follows:

\begin{tabular} {|c|c|c|c|} x&y&x^2&xy\\[1ex] 0.5&10.4&0.25&5.2\\ 1&5.8&1&5.8\\ 2&3.3&4&6.6\\ 3&2.4&9&7.2\\ 4&2&16&8\\[1ex] \Sigma x=10.5&\Sigma y=23.9&\Sigma x^2=30.25&\Sigma xy=32.8 \end{tabular} \\ \\ \\ \bar{x}= \frac{\Sigma x}{n} = \frac{10.5}{5} =2.1 \\ \\ \bar{y}=\frac{\Sigma y}{n} = \frac{23.9}{5} =4.78

Thus,

b= \frac{32.8-5(2.1)(4.78)}{30.25-5(2.1)^2} \\ \\ = \frac{32.8-50.19}{30.25-22.05} = \frac{-17.39}{8.2} \\ \\ =-2.12

and

a=4.78-(-2.12)(2.1)=4.78+4.454=9.234

Therefore, the linearlized form of the equation is y = 9.234 - 2.12x



Part B:

At x = 1.6,

y=9.234-2.12(1.6)=9.234-3.392=5.842
5 0
3 years ago
What is the largest whole-number value of n that your calculator will display in standard notation
Semenov [28]
A. 3^n      3^20
b.N^n      N^20
c.12^n    12^9
d.237^n  237^4
3 0
3 years ago
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I Ready
ivann1987 [24]

Answer:

30p+25r+20c

Step-by-step explanation:

to find the amount ty earns for each job multply his hourly rate by the number of hurs he works doing each job. the find the total

3 0
3 years ago
WILL MARK BRAINLIEST FOR FIRST CORRECT ANSWER!
olganol [36]

Answer:

B.

Step-by-step explanation:

They paid 111.75 for there months that means they minus 5.50 dollars every month which means a total of of 16.5 for three months. So you need use 111.75 plus the credit 16.5 dollars for three months 111.75+16.5=128.25 and than you divide them by 3 for three months so they pay 42.75 per month before the credit

3 0
3 years ago
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lakkis [162]

Answer: 15.75

Step-by-step explanation: To calculate, we do 45 x 35 / 100 which will equal 15.75

Hope this helps! Please mark me as brainliest!

5 0
3 years ago
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