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Degger [83]
3 years ago
14

Tim is building a bridge for his model railroad. He has 3 sections to fit together to fit together form the bridge span. The pie

ces are each 4.5 inches long. How long will the bridge be when completed? Explain how you solved the question.
Mathematics
1 answer:
Sergio [31]3 years ago
5 0
4.5 + 4.5 + 4.5 = 13.5
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The equation of the line that has a slope of
Fynjy0 [20]
Y = -23x + b
1 = -23(5) + b
1 = -115 + b, b = 116
Y = -23x + 116
I choose the slope intercept form since it was easy to calculate. The slope was given, you just need to plot in the points to find the y- intercept.
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What is the decimal for pi??
mafiozo [28]

3.14 is the decimal for pi


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{(-5,9),(2, 31), (9, 143), (11, 151),(0, 42),(5, 97)}
wlad13 [49]

The number 7 is the best prediction of the output when the input is 13.

<h3>What is the equation of a line passing through two given points in 2 dimensional plane?</h3>

Suppose the given points are (x_1, y_1) and (x_2, y_2), then the equation of the straight line joining both two points is given by

(y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)

The equation of the line is found as;

\rm y-y_1=  \frac{y_2-y_1}{x_2-x_1}      \\\\ \rm y-9=                                         \frac{31-9}{2+5} (x+5)\\\\ 7y-63 = \frac{31-9}{2+5} (c+5)\\\\ 7y-63=22x+110\\\\ 7y= 22x+173 \\\\ but ,x=13\\\\ 7y=22 \times 13 +173\\\\ y= \frac{1259}{7} \\\\ y= 179

Learn more about straight line equation here:

brainly.com/question/380976

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8 0
2 years ago
What is the slope of the line graphed below​
bonufazy [111]
1/5 the slop is the rise over run
3 0
3 years ago
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Mika used these steps to solve the equation 5x−12=−2+5(x−2)
e-lub [12.9K]
5x−12=−2+5(x−2)
multiply 5 by all in parentheses first
5x - 12= -2 + (5*x) + (5*-2)
5x - 12= -2 + 5x - 10
5x - 12= 5x - 12
if you subtract 5x from one side and add 12 to the other the solution is:
0= 0

This equation is one that is always true. No matter what number you put in for x, it will always be true.

Example:
5x - 12= 5x - 12
5(4) - 12= 5(4) - 12
20 - 12= 20 - 12
8= 8

Example:
5(-100) - 12= 5(-100) - 12
-500 - 12= -500 - 12
-512= -512

This will happen no matter what number x is.

ANSWER: D) All values of x make the equation true.

Hope this helps! :)
5 0
3 years ago
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