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3 years ago

The world population is increasing exponentially. Do you think that the trend will continue forever? Explain why or why not.

Mathematics

2 answers:

Nutka1998 [239]3 years ago

8 0

Answer:

Dont delete my answer it isn't a comment read the question.

I think that the population will stop when we can't sustain the elderly and babies

shutvik [7]3 years ago

6 0

Answer:

Human population, now over 7 billion, cannot continue to grow indefinitely. There are limits to the life-sustaining resources earth can provide us. In other words, there is a carrying capacity for human life on our planet. Carrying capacity is the maximum number of a species an environment can support indefinitely.

It is projected that the world's population will continue to grow and will reach nearly 10 billion by 2050. While in other regions growth will slow significantly, in Sub-Saharan Africa, the population is projected to double by 2050, an expansion of nearly 10 times relative to 1960, from 227 million to 2.2 billion.

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What is the mean of the following set of numbers rounded to the nearest whole number?

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The mean is when you add up all the numbers and divide by the amount of numbers there are.
143+312+41+28+308+619+321+352+465=2589
2589/9=287.666666667
round to the whole number you get
288

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3 years ago

A theater has 47 seats in the first row, 51 seats in the second row, 55 seats in the third row, and so on. How many seats are

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2 years ago

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Misha Larkins [42]

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2 years ago

Read 2 more answers

Please answer this quick for me

nlexa [21]

Answer:

16/20

Step-by-step explanation:

We can write this as a proportion

4 x

----- = ----------

5 y

Using cross products

4y = 5x

We know that x+y = 36

We have 2 equations and 2 unknowns.

4y = 5x

x+y =36

Divide by first equation by 4

y = 5/4 x

substitute this into the 2nd equation

x + 5/4x = 36

Getting a common denominator

4/4x + 5/4 x = 36

Combining like terms

9/4 x =36

Multiply each side by 4/9 to isolate x

4/9 * 9/4x = 4/9*36

x = 16

Now we need to find y

y = 5/4x

y = 5/4 (16)

y= 20

The fraction is x/y

16/20

8 0

3 years ago

A sociologist develops a test to measure attitudes towards public transportation, and 25 randomly selected subjects are given th

zhannawk [14.2K]

Answer:

The 95% confidence interval for the mean score of all such subjects is (32.033, 120.367).

Step-by-step explanation:

We have the sample standard deviation, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.039

The margin of error is:

M = T*s = 2.0639*21.4 = 44.167

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 76.2 - 44.167 = 32.033

The upper end of the interval is the sample mean added to M. So it is 76.2 + 44.167 = 120.367

The 95% confidence interval for the mean score of all such subjects is (32.033, 120.367).

7 0

2 years ago