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3 years ago

9

How are graphs used to represent patterns??

2 answers:

valentinak56 [21]3 years ago

5 0

They organize data and can reveal relationships, making it easier to write equations that describe different patterns.<span />

mr Goodwill [35]3 years ago

5 0

A picture is worth a thousand words. It's also worth a thousand data points!

A graph can be defined as :

a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

The different uses of graphs are :

Line graphs can be used to compare changes over the same period of time for more than one group. Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time. Bar graphs are used to compare things between different groups or to track changes over time.

Other uses of graphs are :

It can show patterns. Like a declining sales line.

It can easily show the breakdown of costs as in a Pie Chart.

It can determine profit and loss in a breakeven analysis.

It can show a comparison of two different processes.

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The vertices of a quadrilateral in the coordinate plane are known.How can the perimeter of the figure be found?

Yuri [45]

Answer:

Find the length of sides. The sum of these sides is the perimeter of a quadrilateral

Step-by-step explanation:

A quadrilateral is a figure that has four sides. To find the perimeter of any quadrilateral, we find the sum of all four sides.

<u>Given: </u>

The co-ordinates of all vertices of a quadrilateral is known

<u>To Find:</u>

Perimeter of a quadrilateral

<u>Steps:</u>

1. Find the length of all sides using the straight line distance formula.

2. Add all the sides to find perimeter.

Let us take an example:

In figure the four co-ordinates are as follows:

A(1,3), B(4,2), C(3,0) and D(1,1)

Perimeter of quadrilateral ABCD= AB+BC+CD+DA

To find AB we use straight line distance formula, which is as follows:

AB = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$ where

$x_{1}= 1,x_{2}=4, y_{1}=3, y_{2}=2$

Substituting values we get,

AB= $\sqrt{(4-1)^2+(2-3)^2 }$

AB= $\sqrt{(3)^2+(-1)^2 }$

AB= $\sqrt{(9+1 }$

AB= $\sqrt{10}$

Similarly, we can find length of BC,CD and DA

BC= $\sqrt{5}$ ,CD= $\sqrt{5}$ ,DA=2

Then sum of these sides is perimeter of quadrilateral= $12+2\sqrt{5}$

Note: In this example, the perimeter cam out in roots, due to the values of co-ordinates taken. But the sum can also be a whole number.

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3 years ago

The area of a rectangle is found by using the formula A=l×w

navik [9.2K]

Answer:

The width of the desk is 3

Step-by-step explanation:

plug in what you already have and solve.

A= l x w

18=6x w

when you solve for w you get 3

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3 years ago

Nicole bought a piece of property for $12,000. She sold it for $15,000. What is the percent of increase? <br> A. 20% B. 1

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Answer would be D 25%

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4 years ago

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What speed would a plane average on a trip

AleksandrR [38]

Answer:

B) 666.6 miles per hour

Step-by-step explanation:

To solve this question, divide the 4000 miles with the 6 hours to get an answer in units of X miles per hour.

4000 miles/6 hours = 666.6 miles per hour

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