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Dennis_Churaev [7]
2 years ago
8

Plz help I’m confused -3. (8 + 1) +224 - 8

Mathematics
1 answer:
Tema [17]2 years ago
3 0

Answer:

189

Step-by-step explanation:

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The population of a small town was 3500 in 2005. The population increases by 4% annually. A. Write an exponential growth functio
nika2105 [10]

Answer: The population in 2025 will be 7669

Step-by-step explanation:

a) When we have an initial quantity A, and we have an increase of the X%, the new quantity is written as:

new quantity = A + A*(X%/100%) = A*(1 + X%/100%)

In this case, our initial quantity is 3500, the town's population in 2005.

And X% = 4%.

We know that each year, the population increases by 4%.

Then if P(1) is the population one year after 2005, this is:

P(1) = 3500*(1 + 4%/100%) = 3500*(1.04)

After another year, the population increases again:

P(2) = (3500*(1.04))*(1 + 4%/100%)) = 3500*(1.04)*(1.04) = 3500*(1.04)^2

Well, we already can see the pattern here, the population N years after 2005 will be:

P(N) = 3500*(1.04)^N

b) Now we want to know the population in 2025.

N represents the number of years after 2005, then we will have:

N = 2025 - 2005 = 20

2025 is 20 years after 2005.

Then the population in 2025 will be:

P(20) = 3500*(1.04)^20 = 7,668.9

And we can not have a 0.9 of a person, so we should round it up to the next whole number, then the population in 2025 will be 7669

5 0
2 years ago
The students in the After-School Club ate 12 grapes per minute. After 9 minutes, there were 32 grapes remaining. The table shows
lesantik [10]

Answer:

Grapes

Step-by-step explanation:

The rate of change for the grapes was -12 grapes per minute.

To calculate the rate of change for the carrots, use the slope formula m = \frac{y_{1}-y_{2}  }{x_{1}-x_{2}  }. In this case, m is the rate of change, time is x, and the carrots remaining is y.

m = \frac{118-136}{8-6}  = \frac{-18}{2} = -9

The decrease in grapes was much greater than the decrease in carrots, so therfore the students ate the grapes at a faster rate.

5 0
2 years ago
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Given the data below which set of numbers contains the lower quartile median and upper quartile help fast please !!
bezimeni [28]

Answer:

{27.5, 29, 34}.

Step-by-step explanation:

In order they are

24 27 28 28 29 31 32 36 38

The Median = middle value = 29.

Lower quartile =  mean of 27 and 28 =  27.5.

Upper quartile =  mean of 32 and 36 = 34.

5 0
2 years ago
Read 2 more answers
All of the following are equivalent except _____.<br> 7x 2<br> 4x + 3x<br> (4 + 3)x<br> 7x
ad-work [718]

Answer:

#1- 7x*2=14x, the rest = 7x

Step-by-step explanation:


7 0
3 years ago
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(a-12)x = a+8 in the equation to the left, a is a constant. if the equation has no solutions, what is the value of a?
ohaa [14]

Answer:

<h2>The value of a is 12.</h2>

Step-by-step explanation:

The equation is given by (a - 12)x = a + 8.

In order to get the solution of the equation, that is the value of x, the above equation is needs to be divided by a - 12. (a - 12) will be in the denominator.

The solution can not be found, if the value of a - 12 will be 0, that is a = 12.

6 0
3 years ago
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