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svetoff [14.1K]
3 years ago
9

Which expresion is equivalent to the -3(4×-2)-2×

Mathematics
1 answer:
Sphinxa [80]3 years ago
3 0
-12x + 6 - 2x
-14x +6
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In​ 2012, the population of a city was 6.38million. The exponential growth rate was 2.38​% per year.
Aleksandr-060686 [28]

The exponential growth function is P(t) = 6.38 million x (1.0238^t).

The population of the city in 2018 is 7.35 million.

The year the population would be 9 million is 14.46 years.

The doubling time is 29.12 years.

<h3>What is the exponential growth function?</h3>

FV = P (1 + r)^n

  • FV = Future population
  • P = Present population
  • R = rate of growth
  • N = number of years

6.38 million x (1.0238^t)

Population in 2018 = 6.38 million x (1.0238^6) = 7.35 million

Number of years when population would be 9 million : (In FV / PV) / r

(In 9 / 6.38) / 0.0238 = 14.46 years

Doubling time = In 2 / 0.0238 = 29.12 years

To learn more about exponential functions, please check: brainly.com/question/18760477

#SPJ1

5 0
2 years ago
If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4 then the standard error is
lawyer [7]

Answer:

The standard error is 11.

Step-by-step explanation:

Given : If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4.

To find : The standard error ?

Solution :

The standard error formula is

SE=\frac{\sigma}{\sqrt{n}}

Where, \sigma=22 is the standard deviation of a normally distributed population

n=4 is the sample size

Substitute the value,

SE=\frac{22}{\sqrt{4}}

SE=\frac{22}{2}

SE=11

Therefore, the standard error is 11.

7 0
3 years ago
I need help please! Thank you!
gizmo_the_mogwai [7]

Answer:

1, because 13 does not divide by anything by 1 that 20 dived to also

7 0
3 years ago
Please help me before I go crazy.
maksim [4K]
Neither are correct. if you are to research both of them you will notice neither are correct. translations are just a mirror of eachother and same for the other one. these are not mirrors of eachother
8 0
3 years ago
Find the height<br> | A = 28 cm?<br> 7 cm
Montano1993 [528]

Answer:

4 cm = height

Step-by-step : 28/7 =4

8 0
4 years ago
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