Help my please thanks

Answers

Answer 1

Answer: The rule of 180 degree rotation about the origin:
(x,y) --> (-x,-y)
so (3,0) --->(-3,0)

Answer
(-3,0)

Your answer is correct.

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-68 divided (-4)Help ASAP

Suppose Barbara has a 20 minute commute and scores 67.4 on the survey. Is Barbara more 'well-off than the typical individual who has a 20-ml?

Answers

Please find full question attached Answer:

Barbara is not more well off as the typical individual has a higher well being score

Explanation:

please find explanation attached

Final answer:

Barbara's well-being in relation to her commute is dependent on how the survey scoring is interpreted. Based on assumptions, given her 20-minute commute and a survey score of 67.4, she could potentially be considered more 'well-off' than the typical 20-mile individual commuter.

Explanation:

From the information given in the question, it is not clear how the score of 67.4 on the survey relates to Barbara's 'well-being' regarding her commute. However, if we were to make an educated guess, we could say it depends on how the survey scores are distributed. A high survey score could mean that Barbara is more satisfied with her commute, and thus more 'well-off', compared to the typical individual who has a 20 mile commute.

Referring to the information given, 95 percent of individuals have a commute of under 26 minutes, so Barbara's 20-minute commute is well within this range. If the score of 67.4 is considered high (this would depend on the scale or range of scoring used in the survey), then we could potentially consider Barbara to be more 'well-off' than the average individual.

However, please note that this conclusion is based on assumptions, and additional information such as the survey scoring scale and methodology would be needed to provide a more accurate assessment.

Learn more about statistical interpretation here:

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There are 500 employees in a firm, 45% are female. a sample of 60 employees is selected randomly. the probability that the sample proportion of females is between 0.40 and 0.55 is

Answers

Let X be the number of female employee. Let n be the sample size, p be the probability that selected employee is female.

It is given that 45% employee are female it mean p=0.45

Sample size n=60

From given information X follows Binomial distribution with n=50 and p=0.45

For large value of n the Binomial distribution approximates to Normal distribution.

Let p be the proportion of female employee in the given sample.

Then distribution of proportion P is normal with parameters

mean =p and standard deviation = $\sqrt{(p(1-p))/(n)}$

Here we have p=0.45

So mean = p = 0.45 and

standard deviation = $\sqrt{(0.45(1-0.45))/(60)}$

standard deviation = 0.0642

Now probability that sample proportions of female lies between 0.40 and 0.55 is

P(0.40 < P < 0.45) = $P((0.40 - 0.45)/(0.0642) < (P-mean)/(standard deviation) < (0.55- 0.45)/(0.0642) )$

= P(-0.7788 < Z < 1.5576)

= P(Z < 1.5576) - P(Z < -0.7788)

= P(Z < 1.56) - P(Z < -0.78)

= 0.9406 - 0.2177

= 0.7229

The probability that the sample proportion of females is between 0.40 and 0.55 is 0.7229

Final answer:

To find the probability that the sample proportion of females is between 0.40 and 0.55, convert the sample proportions to z-scores and use the z-table to find the probabilities.

Explanation:

To find the probability that the sample proportion of females is between 0.40 and 0.55, we need to find the z-scores associated with these proportions and use the z-table to find the probabilities.

First, we need to convert the sample proportions to z-scores using the formula: z = (p - P) / √(P(1-P) / n), where p is the sample proportion, P is the population proportion, and n is the sample size.

Once we have the z-scores, we can use the z-table to find the probabilities. The probability that the sample proportion of females is between 0.40 and 0.55 is the difference between the probabilities associated with the z-scores for 0.40 and 0.55.

Learn more about Probability here:

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Can someone please help me god bless!

Answers

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let's solve :

$12x + 20y = 20$

$20y = 20 - 12x$

$y = (20 - 12x)/(20)$

$y = (20)/(20) - (12x)/(20)$

$y = 1 - (3)/(5) x$

so, the slope intercept form of given line will be :

$y = - (3)/(5) x + 1$

Answer:

130

Step-by-step explanation:

sorry if wrong :-( :-( :-(

Paul has $20,000 to invest. His intent is to earn 10.5% interest on his investment. He can invest part of his money at 7% interest and part at 12% interest. How much does Paul need to invest in each option to make 10.5% interest on his investment?Paul should invest $
and $
to earn 10.5% on his investments.

Answers

x=7%
y=12%
x+y=20000
0.07x+0.12y=20000*0.19=3800

steve must pay 28% of his salary in federal income tax. If his salary is 168,000, how much is his federal income tax

Answers

Answer:

Step-by-step explanation:

168000*28%=47,040

Question 1Two packs of toilet rolls are available in the
supermarket 9 toilet rolls for £3.15 4 toilet rolls for £1.36
Work out which pack offers the best value for money.

Answers

Answer:

for the nine toilet pack, a toilet roll is 3.15/9 which is£0.35 while for the 4 toilet roll pack, a toilet roll is 1.36/4 which is £0.34 so the nine toilet pack gives the best value for money because a toilet roll sells for £0.35 which is £ 0.01 more than the four toilet pack

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