What is the device manager in windows 8?

Billy used to take care of his laptop. However, one day he lost his laptop. He lost all his data, and there was no way to retrie

Bad White [126]

Answer: D. He did not create a back up of his data.

Explanation: He lost his data, so he did not back it up in case he lost his laptop.

6 0

3 years ago

A testing lab wishes to test two experimental brans of outdoor pain long each wiil last befor fading . The testing lab makes six

Simora [160]

Answer:

The answer is " $\bold{Brand \ A \ (35, 350, 18.7) \ \ Brand \ B \ (35, 50, 7.07)}$ "

Explanation:

Calculating the mean for brand A:

$\to \bar{X_{A}}=\frac{10+60+50+30+40+20}{6} =\frac{210}{6}=35$

Calculating the Variance for brand A:

$\sigma_{A}^{2}=\frac{\left ( 10-35 \right )^{2}+\left ( 60-35 \right )^{2}+\left ( 50-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 20-35 \right )^{2}}{5} \\\\$

$=\frac{\left ( -25 \right )^{2}+\left ( 25 \right )^{2}+\left ( 15\right )^{2}+\left ( -5 \right )^{2}+\left ( 5 \right )^{2}+\left ( 15 \right )^{2}}{5} \\\\ =\frac{625+ 625+225+25+25+225}{5} \\\\ =\frac{1750}{50}\\\\=350$

Calculating the Standard deviation:

$\sigma _{A}=\sqrt{\sigma _{A}^{2}}=18.7$

Calculating the Mean for brand B:

$\bar{X_{B}}=\frac{35+45+30+35+40+25}{6}=\frac{210}{6}=35$

Calculating the Variance for brand B:

$\sigma_{B} ^{2}=\frac{\left ( 35-35 \right )^{2}+\left ( 45-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 35-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 25-35 \right )^{2}}{5}$

$=\frac{\left ( 0 \right )^{2}+\left ( 10 \right )^{2}+\left ( -5 \right )^{2}+\left (0 \right )^{2}+\left ( 5 \right )^{2}+\left ( -10 \right )^{2}}{5}\\\\=\frac{0+100+25+0+25+100}{5}\\\\=\frac{100+25+25+100}{5}\\\\=\frac{250}{5}\\\\=50$

Calculating the Standard deviation:

$\sigma _{B}=\sqrt{\sigma _{B}^{2}}=7.07$

4 0

3 years ago

I was not supposed to upgrade my iPad to iOS 11 due to testing but it automatically did when I was charging it. Is there a way t

VashaNatasha [74]

Yes there is a way, you can just go to the backup/system operating system and delete/archive the update, but its only a limited amount of time though, and to be honest with most software, its very hard to downgrade an update, that requires professional skills, but there is a way. If you want try looking up how to downgrade an update for ios on google search and that should help you.

6 0

3 years ago

Which type of chart is best for highlighting trends in data?

STALIN [3.7K]

Pie chart I believe that is the right answer

8 0

3 years ago

Read 2 more answers

Write a function negateOdds that takes a list of integers and returns a list of integers with all of the odd integers negated. n

aleksley [76]

Is this computer science?

If so, then the function you would need for your code is this...

_____

if (someValue%2 != 0) {

value *= -1;

}

_____

//basically <u>number%2 == 0</u> means even so "!" means false so "not even" meaning "odd."

Assuming you are doing an array list (given a set value) or a for-loop with an

int someValue = Integer.parseInt(args[i]); inside (not given a set value and not restricted)

Otherwise ignore me....lol

5 0

3 years ago