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3 years ago

Idc anymore bc i got my answer XDD

Mathematics

2 answers:

Bess [88]3 years ago

7 0

Answer:

omg hi

Step-by-step explanation:

kozerog [31]3 years ago

4 0

Answer: hows are you den

Step-by-step explanation:

You might be interested in

Select all of the following that represent quadratic expressions:

suter [353]

C. (x + 2)(x + 1)

it can be turned into an equation :)

7 0

3 years ago

What percent of 120 is 90

Alex777 [14]

Answer:

75%

Step-by-step explanation:

90/ 120 is the same as 75 or 3/4 so 75% of 120 is 90

7 0

2 years ago

Solve the equation <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bn%7D%7B10%7D%20%2B8%3D17" id="TexFormula1" title="\frac{n}{10} +8

jonny [76]

Its 90 because 90 divided by 10 simplifies down to 9, and 9+8=17

3 0

3 years ago

A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales representa

Aleksandr [31]

Answer:

$y=3.529 x +37.91$

We can predict the sales representative travelled 8 miles replacing x =8 and we got:

$y(8) = 3.529*8 + 37.91= 66.142$

And we can predict the sales representative travelled 11 miles replacing x =11 and we got:

$y(11) = 3.529*11 + 37.91= 76.729$

Step-by-step explanation:

For this case we have the following data:

Miles Traveled x: 2,3,10,7,8,15,3,1,11

Sales y :31,33,78,62,65,61,48,55,120

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:

$\sum_{i=1}^n x_i =60$

$\sum_{i=1}^n y_i =553$

$\sum_{i=1}^n x^2_i =582$

$\sum_{i=1}^n y^2_i =39653$

$\sum_{i=1}^n x_i y_i =4329$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=582-\frac{60^2}{9}=182$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=4329-\frac{60*553}{9}=642.33$

And the slope would be:

$m=\frac{642.33}{182}=3.529$

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

$\bar x= \frac{\sum x_i}{n}=\frac{60}{9}=6.67$

$\bar y= \frac{\sum y_i}{n}=\frac{553}{9}=61.44$

And we can find the intercept using this:

$b=\bar y -m \bar x=61.44-(3.529*6.67)=37.91$

So the line would be given by:

$y=3.529 x +37.91$

We can predict the sales representative travelled 8 miles replacing x =8 and we got:

$y(8) = 3.529*8 + 37.91= 66.142$

And we can predict the sales representative travelled 11 miles replacing x =11 and we got:

$y(11) = 3.529*11 + 37.91= 76.729$

4 0

3 years ago

Write an equation for the line in slope-intercept form.

avanturin [10]

Answer:

y=2

Step-by-step explanation:

8 0

2 years ago