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fomenos
3 years ago
9

Describe some data that when graphed would represent a proportional relationship. Explain your reasoning

Mathematics
2 answers:
OLga [1]3 years ago
7 0
The lines would go up and over at the same rate. They would have the same slope, like parallel lines.

Hope this helps!! :)
Alex787 [66]3 years ago
7 0

Answer:

A proportional relationship is "two quantities vary directly with each other."

Example:

The amount of gasoline you fill in your car and the amount you pay is a proportional relationship.

If 1 gallon of gasoline is $3, then the cost of 3 gallons of gasoline is $9.

Step-by-step explanation:

A relationship is between two quantities.

A proportional relationship is "two quantities vary directly with each other."

Say, if the quantity "x" increases, then the associated quantity "y" also increases.

For example,

y = 2x

Let's find the data.

<u>x </u>                <u>y</u>

0                 0

1                  2

2                 4

3                  6

As you can see when the value of "x" increases, the value of "y" also increases.

This is called proportional relationship.

Example:

The amount of gasoline you fill in your car and the amount you pay is a proportional relationship.

If 1 gallon of gasoline is $3, then the cost of 3 gallons of gasoline is $9.

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RoseWind [281]

Answer:

y = x/4 -1/2

Step-by-step explanation:

given coordinates : ( -2, -1 ) and ( 2 , 0 )

gradient = y2 - y1 / x2 - x1

               = 0 - -1 / 2 - -2

               = 1/4

equation of line:

y - y1 = m( x - x1 )

y - 0 = 1/4 ( x - 2 )

y = x/4 -1/2

the line shown below to confirm:

5 0
2 years ago
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Determine whether 81 − 49n4 is a difference of two squares. If so, factor it. If not, explain why.
Mumz [18]

We have

81-49n^4=9^2-(7n^2)^2

so this is indeed a difference of squares. Factorizing would give

81-49n^4=(9-7n^2)(9+7n^2)

making the answer D.

We can further factor the first term here and write

9-7n^2=3^2-(\sqrt 7\,n)^2=(3-\sqrt7\,n)(3+\sqrt7\,n)

but that's clearly out of the scope of this question.

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3 years ago
PLEASE HELP ASAP GIVING 100 POINTS
Inessa [10]

Answer:

3.98 meters

Step-by-step explanation:

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h=\frac{V}{\pi r^2}

Now That we know our formula, we just need to put in our numbers and simplify

h=\frac{5000}{\pi 20^2}

h=\frac{5000}{1256.637}

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2 years ago
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Rashid [163]

Answer:

c

9x^ - 30x - 25

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3 years ago
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Solve 7^x-2 =30.
Anna007 [38]

Answer:

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Step-by-step explanation:

this problem requires logs

log_{7} 30 = x-2

x = 2 + log_7 (30) or 3.7479

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2 years ago
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