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3 years ago

12

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1 answer:

joja [24]3 years ago

4 0

Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.Jul 4, 2019

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Help me please! I really need help

Brums [2.3K]

If you looked it up online you could find it. look on safari

8 0

3 years ago

Read 2 more answers

Z=-3x2+2ey-2y+3 cực trị tự do

topjm [15]

Answer:

z=( -2 , 5/3) can you speak English

5 0

2 years ago

10. Use the properties of exponents to simplify the expression:

aivan3 [116]

<h3><u>Answer</u> :</h3>

$\bigstar\:\boxed{\bf{\purple{x^{\frac{m}{n}}}=\orange{(\sqrt[n]{x})^m}}}$

Let's solve !

$:\implies\sf\:25^{\frac{3}{2}}$

$:\implies\sf\:(\sqrt[2]{25})^3$

$:\implies\sf\:5^3$

$:\implies\boxed{\bf{\red{125}}}$

<u>Hence, Oprion-D is correct</u> !

7 0

3 years ago

Sample size: A researcher is trying to decide how many people to survey. Which of the following sample sizes will result in a co

oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that a researcher is trying to decide how many people to survey.

We have confidence intervals are intervals with middle value as the mean and on either side margin of error.

Confidence interval = Mean ± Margin of error

Thus confidence interval width depends on margin of error.

Margin of error = $Critical value *\frac{\sigma}{\sqrt{n} }$

Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.

Hence for small n we get wide intervals.

So if sample size = 300, the researcher will get wider confidence interval

4 0

4 years ago

I WILL GIVE BRAINLISET!! no links por favor <br><br> 8) Simplify.

Marina CMI [18]

Answer:

√ 15 + √ 10

Step-by-step explanation:

The answer is above

3 0

3 years ago