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3 years ago

What is the sum of the interior angle Measures of an 11 - gin

1 answer:

6 0

$\bf \textit{sum of all interior angles in a polygon}\\\\
S=180(n-2)\quad 
\begin{cases}
n=\textit{number of sides}\\
----------\\
n=\stackrel{11-gon}{11}
\end{cases}\implies S=180(11-2)$

and surely you know how much that is.

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A plumber charges an initial amount,x, to make a house call plus an hourly rate,y, for the time he is working.A 1-hour job costs

Inessa05 [86]

X=$30
y=$60

1 hour job- 60x1=60+30=90
3 hour job-60x3=180+30=210

5 0

3 years ago

Is this correct? I have an open dot on 2 with the arrow going to the right if it's not clear

dlinn [17]

Answer:

Yep! an open dot is <

A closed dot means ≤

Hope this helps! :)

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3 years ago

I NEED THIS NOW PLS HELP Stella walks down a flight of stairs to the basement. Then she walks back up the stairs and up another

ahrayia [7]

Answer:

She is 12 feet abouv ground.

Step-by-step explanation:

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3 years ago

Six friends are going to a consert. Their tickets total

irga5000 [103]

Answer:

196 and 280

Step-by-step explanation:

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3 years ago

PLZ ANSWER ASAP!!!!! Part B

bazaltina [42]

The equation of the linear regression is $\^ y = 3.58125\^x + 202.575$

<h3>Graphing tool</h3>

To determine the line of best fit, we make use of a graphing tool

See attachment for the graph of the line of best fit

<h3>The equation</h3>

From the graphing tool, we have the following calculation summary

Sum of X = 440
Sum of Y = 3601.5
Mean X = 44
Mean Y = 360.15
Sum of squares (SSX) = 1440
Sum of products (SP) = 5157

The regression Equation is then represented as:

$\^y = b\^x + a$

Where:

$b = \frac{SP}{SSX}$ and $a = \bar y - b \times \bar x$

$b = \frac{5157}{1440}$

$b = 3.58125$

Also, we have:

$a = \bar y - b \times \bar x$

$a= 360.15 - (3.58\times 44)$

$a = 202.575$

So, the linear regression equation is:

$\^ y = 3.58125\^x + 202.575$

Read more about linear regression at:

brainly.com/question/17844286

4 0

3 years ago