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bagirrra123 [75]
4 years ago
8

3 x + y = − 14 4 x + 4 y = − 16

Mathematics
1 answer:
aev [14]4 years ago
4 0

Answer:

y=1

x=-5

Step-by-step explanation:

3x+y=-14

4x+4y=-16

y=-3x-14

4x+4y=-16

y=-3x-14

4(-3x-14)+4x=-16

y=-3x-14

-8x-56=-16

y=-3x-14

-8x=40

y=-3x-14

x=-5

y=1

x=-5

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One year, the population of a city was 354,000. Several years later it was 407,100. Find the percent increase.
tekilochka [14]

Answer:

15%

Step-by-step explanation:

GIven data

Initial population=  354,000

Final population=407,100

%Error= Final- Initial/initia*100

%Error= 407,100- 354,000/ 354,000*100

%Error= 53100/ 354,000*100

%Error=0.15*100

%Error=15%

Hence the error is 15%

4 0
3 years ago
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sertanlavr [38]

Answer:

144 u²

Step-by-step explanation:

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4 0
3 years ago
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denis23 [38]

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Step-by-step explanation:

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7 0
3 years ago
Regression and modeling with functions
Leto [7]
I used scatter plot graph in the insert graph function of excel and added a trend line that shows the equation of the line of best fit and the r. 

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y = 3800.6x - 5223.6
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5 0
3 years ago
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The first one would be:
a.Given
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8 0
3 years ago
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