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amm1812
3 years ago
8

Sally lives in City A and works for the department of transportation. She needs to inspect the weigh stations in each of four di

fferent cities. In how many ways can she reach each of these cities and return to her home in City​ A?
Mathematics
1 answer:
KonstantinChe [14]3 years ago
6 0
She could drive to city a
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I need some help with this problem.
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Answer:

B.

Step-by-step explanation:

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6 0
3 years ago
How many two digit numbers do not contain the digit 9?
cricket20 [7]
87 numbers do not contain the digit 9
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3 years ago
line m contains the points -3,4 and 1,0. write the equation of a line that would be perpendicular to this one and pass through t
castortr0y [4]

The equation of line perpendicular to line containing points (-3, 4) and (1, 0) and passes through (-2, 6) in point slope form is y = x + 8

<h3><u>Solution:</u></h3>

Given that line m contains points (-3, 4) and (1, 0)

We are asked to find the equation of line perpendicular to line containing points (-3, 4) and (1, 0) and passes through (-2, 6)

<em><u>Let us first find slope of the line "m"</u></em>

Given two points are (-3, 4) and (1, 0)

m = \frac{y_2 - y_1}{x_2 - x_1}

\left(x_{1}, y_{1}\right)=(-3,4) \text { and }\left(x_{2}, y_{2}\right)=(1,0)

m=\frac{0-4}{1-(-3)}=-1

Thus slope of line m is -1

We know that <em>product of slope of given line and perpendicular line are always -1</em>

So, we get

\begin{array}{l}{\text { slope of line } m \times \text { slope of perpendicular line }=-1} \\\\ {-1 \times \text { slope of perpendicular line }=-1} \\\\ {\text { slope of perpendicular line }=1}\end{array}

So we have got the slope of perpendicular line is 1 and it passes through (-2, 6)

Let us use the point slope form to find the required equation

<em><u>The point slope form is given as:</u></em>

y - y_1 = m(x - x_1)

(x_1, y_1) = (-2, 6) and m = 1

y - 6 = 1(x - (-2))

y - 6 = x + 2

y = x + 8

Thus equation of required line in point slope form is y = x + 8

7 0
3 years ago
Find m∠1. Then classify the triangle by its angles
omeli [17]

9514 1404 393

Answer:

  • ∠1 = 60°
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Step-by-step explanation:

The sum of angles in a triangle is 180°, so we have ...

  60° +60° +∠1 = 180°

  ∠1 = 180° -120° = 60°

The measure of angle 1 is 60°.

All of the angles are the same, so this is an equiangular triangle, better known as an equilateral triangle.

3 0
3 years ago
Which set of ordered pairs represents a function?
Anettt [7]
B because for it to be a function one X value cant have more than one Y value and B is the only one that follows the rule
8 0
3 years ago
Read 2 more answers
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