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ch4aika [34]
2 years ago
5

ANSWER FAST 15 points

Mathematics
2 answers:
bearhunter [10]2 years ago
3 0

Answer:

5 12 13 equals a right triangle

konstantin123 [22]2 years ago
3 0

Answer:

5 12 13

Step-by-step explanation:

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The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random
Pavlova-9 [17]

Answer:

m=\frac{27.75}{375}=0.074

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5

\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375

And we can find the intercept using this:

b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45

So the line would be given by:

y=0.074 x +1.45

C. = 1.45 + 0.074x

Step-by-step explanation:

The data given is:

x: 5,5,510,10,10, 15,15,15, 20,20,20

y: 1.6,2.2,1.4, 1.9, 2.4,2.6, 2.3,2.7, 2.8,2.6, 2.9, 3.1

For this case we need to calculate the slope with the following formula:

m=\frac{S_{xy}}{S_{xx}}

Where:

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}

So we can find the sums like this:

\sum_{i=1}^n x_i = 150

\sum_{i=1}^n y_i =28.5

\sum_{i=1}^n x^2_i =2250

\sum_{i=1}^n y^2_i =70.69

\sum_{i=1}^n x_i y_i =384

With these we can find the sums:

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=2250-\frac{150^2}{12}=375

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=384-\frac{150*28.5}{12}=27.75

And the slope would be:

m=\frac{27.75}{375}=0.074

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5

\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375

And we can find the intercept using this:

b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45

So the line would be given by:

y=0.074 x +1.45

C. = 1.45 + 0.074x

8 0
3 years ago
How do I solve this?
jok3333 [9.3K]

Answer:

h(x-11)=-5

Step-by-step explanation:

just put the equetion from the top

h(x-11)=-5

8 0
2 years ago
A child has a box of colored building blocks. He will choose one block without looking. The odds against choosing a blue block a
Katena32 [7]

Answer:

The answer is "0.2352".

Step-by-step explanation:

Given:

The chance of selecting a odds blue block = \frac{13}{4}

=\frac{\text{Amount of unfavourable blue block evets} \ (13)}{\text{Amount of unfavourable blue block evets} \ (4)}

total number of events are 13+4= 17

Calculating the probability of choosing the blue block  

=\frac{\text{Amount of unfavourable blue block evets} }{\text{Amount of unfavourable blue block evets} } \\\\ = \frac{4}{17} \\\\ =0.2352

8 0
2 years ago
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