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galina1969 [7]
2 years ago
10

Help having trouble understanding which one is trueee.

Mathematics
1 answer:
AlexFokin [52]2 years ago
6 0

Answer:

The value of π = 22/7 = 3.14

So here the Equation given we can examine those

1. 3π -1 > 9

=> (3 * 3.14 ) -1 > 9

=> 9.42 – 1 > 9

=> 8.42 > 9 , which is false

2. 7π > 21

=> (7 * 3.14) > 21

=> 21.98 > 21 , Which is true

3. π + 4 < 7

=> 3.14 + 4 <7

=> 7.14 <7 , Which is false

4. (12/ 4π) > 1

=> {12/ (4 * 3.14)} > 1

=> (12/12.56) > 1

=> 0.955 > 1 , Which is false

Know more about “Mathematical equation ” here: brainly.com/question/116018

#SPJ9

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Find the solution of the system of equations.<br> −5x+5y=-10<br> 6x+5y=1
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Answer:

Step-by-step explanation:

Since you have

+

5

y

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−

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−

6

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+

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−

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−

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multiplying both sides by -1:

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−

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plugging this back into the first equation:

−

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(

−

11

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−

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y

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−

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(

−

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4 0
3 years ago
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Marco wants to build house. United Building Company is offering the rate of $15.75 per square foot + an additional conference fe
marishachu [46]
Let us take the case of United Building Company First
Rate per square foot = $15.75
Conference fee taken per hour = $45.99
Total conferencing hours = 4 hours and 15 minutes
                                         = 4.15 hours
Total square feet of the house = 12226 square feet
Then
The total cost taken by the company = (15.75 * 12226) + ( 45.99 * 4.15) dollars
                                                            = 192559.5 + 190.86 dollars
                                                            = 192750.36 dollars
So the total amount taken by United Building Company is $192750.36 dollars
Now let us take the case of American Contracting Company
Rate per square foot taken = $12.46
Flat conferencing fee taken = $230
Then
The total cost taken by the company = (12.46 * 12226) + 230
                                                           = 152335.96 + 230 dollars
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So the total cost taken by the American Contracting Company is $152565.96.
8 0
3 years ago
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