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Tcecarenko [31]
3 years ago
12

Each equation below is followed by several stories.

Mathematics
1 answer:
zloy xaker [14]3 years ago
7 0
Not sure sorry edit : oh sorry I was suppose to add this in the comment section
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The population of a small town in central Florida has shown a linear decline in the years 2001-2012. In 2001 the population was
earnstyle [38]

Answer:

Step-by-step explanation:

First of all, to keep our numbers manageable, we are going to let year 2001 = 0 so year 2012 = 11.  The coordinates that result from these years/population numbers are (0, 22200) and (11, 13950). Since this linear, we can plug those 2 coordinate pairs into the slope equation to find the rate at which the population is decreasing in people per year:

m=\frac{13950-22200}{11-0}=\frac{-8250}{11}=-750\frac{people}{year} That means that the town is losing people at the rate of 750 per year. We can use that slop along with one of the coordinate points to write the linear equation representing this situation:

y-22200=-750(x-0) and

y = -750x + 22200. That answers part A.

Now for B we need to find y when x = 13 (remember we let year 2001 = 0, so year 2014 = 13):

y = -750(13) + 22200 so

y = 12450 people in the year 2014

6 0
2 years ago
I put 41 points.
Anna71 [15]
It is the first equation, 3x-y=-7.
It is the only equation that both sets of points satisfy as true.
3 0
3 years ago
True or false: for any function, x=f^-1(y), then y=f(x)
kozerog [31]

YES

We can work out the inverse using Algebra. Put "y" for "f(x)" and solve for x:

<span><span>The function: f(x)=2x+3
</span><span>Put "y" for "f(x)": y=2x+3
</span><span>Subtract 3 from both sides:
 y-3=2x
</span><span>Divide both sides by 2:
 (y-3)/2=x
</span><span>Swap sides: x=(y-3)/2</span><span>  
   </span><span><span>Solution (put "f-1(y)" for "x") :</span> <span>f-1(y)</span>=(y-3)/2</span></span>


6 0
3 years ago
Read 2 more answers
HELP ASAP!!!!!!! BRAINLIEST <br> 5 attached
kicyunya [14]

Answer:

I answered it on the second time you asked this question check it out

8 0
2 years ago
what should I do if I accidentally break my pet rock that has googly eyes on him? i need to fix Rocky Ronny McRonkster
lions [1.4K]

Answer:

Try to glue it back together

Step-by-step explanation:

I heard gorilla glue works, but be careful and don't get the glue on your body. If that happens it can cause irritation and call posion control immediately.

7 0
3 years ago
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