3 years ago

What percentage of the world's current population is under the age of 14?

Mathematics

1 answer:

Scilla [17]3 years ago

7 0

Answer:

25,69% in 2019

Step-by-step explanation:

mark me please

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Which is not a rational number 0.77777... 11/13 <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B19%7D%20" id="TexFormu

Ymorist [56]

Answer:

the square root of 19

Step-by-step explanation:

this is because it has no rational value

5 0

2 years ago

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b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

99% of confidence intervals for mean age of ICU patients

(53.8920 , 61.2079)

Step-by-step explanation:

Explanation:-

Given sample mean $x^{-} = 57.55$

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

Given data standard error = 1.42

99% of confidence intervals for mean is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

Conclusion:-

99% of confidence intervals for mean is determined by

(53.8920 , 61.2079)

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3 years ago

A gardener is testing various values of x for a rectangular garden with length 2x + 5 meters and width x – 3 meters. The product

vlabodo [156]

This is one of those questions where there's a list of choices that goes along with it,
but you're not sharing the list.

The product of (2x + 5) and (x - 3) is (2x² - x - 15) . That may be useful.

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3 years ago

HURRY PLEASEEE PLEASE PLEASE!!!!!!!!!

Likurg_2 [28]

Answer: 2000 tickets were sold

Step-by-step explanation:

8000 divided by 40 percent is 200

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3 years ago

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tommy's toy car sits 5 feet from the gound. it goes down the ramp at .25 feet per second. how far does it go in 1.5 seconds?

Tamiku [17]

Answer:

0.375 feet.

Step-by-step explanation:

Multiply .25 by 1.5 to get 0.375.

6 0

2 years ago