1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
3 years ago
15

You were assigned 225 pages to read. You finished ¼ of them. How many pages do you have left to read?

Mathematics
2 answers:
DENIUS [597]3 years ago
7 0

Answer: 169 pages

Step-by-step explanation:

225-[1/4(225)]

225-56.25          ROUND DOWN

225-56

169 pages

Neporo4naja [7]3 years ago
5 0

Answer:

56 1/4

Step-by-step explanation:

Hope this helps! :)

You might be interested in
Question is in photo.<br> Thanks
lana66690 [7]

Answer:

what do you mean for this question. What do you need help on?

7 0
3 years ago
Use long division to convert the rational number 1/4 to its equivalent decimal form. In your final answer, include all of your w
nikdorinn [45]
1/4=25/100

Decimal is = .25
4 0
2 years ago
The General Social Survey asked the question: "For how many days during the past30 days was your mental health, which includes s
serg [7]

Answer:

a) For this case we can conclude that we are 95% confident that the true mean for the variable of interest is between 3.4 and 4.24 days in the US population.

b) The 95% confident means that if we select 100 different samples and calculate the 95% confidence interval for each sample selected, then we will have approximately 95 out of 100 confidence intervals will contain the true mean for the parameter of interest.

c) If we have the same info but we want more confidence that implies that the confidence interval would be wider, since the margin of error increase with more confidence.

d) Assuming that we have the same confidence level and the value for the deviation not changes. If we see if we decrease the sample size, then the margin of error would be lower since the original sample size was 1151. So then if we use 500 Americans we would have a lower value for the margin of error for this new interval. And then our confidence interval would smaller than the original.  

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}  

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The confidence interval after apply the formulas was (3.40 ,4.24)

Part a

For this case we can conclude that we are 95% confident that the true mean for the variable of interest is between 3.4 and 4.24 days in the US population.

Part b

The 95% confident means that if we select 100 different samples and calculate the 95% confidence interval for each sample selected, then we will have approximately 95 out of 100 confidence intervals will contain the true mean for the parameter of interest.

Part c

If we have the same info but we want more confidence that implies that the confidence interval would be wider, since the margin of erroe increase with more confidence, because the critical value increase.

Part d

We need to take in count that the margin of error is given by:

ME=t_{\alpha/2}\frac{s}{\sqrt{n}}

Assuming that we have the same confidence level and the value for the deviation s not changes. If we see if we decrease the sample size, then the margin of error would be lower since the original sample size was 1151. So then if we use 500 Americans we would have a lower value for the margin of error for this new interval. And then our confidence interval would smaller than the original.  

4 0
3 years ago
Sqrt2y-5+8=4 what Is the root
alexandr402 [8]

Answer:

The root of \sqrt{2y-5} +8 = 4 is 10.5.

Step-by-step explanation:

Given that,

\sqrt{2y-5} +8 = 4

As we have a square root term along with a single term on left side. We will move the single term on right side.

\sqrt{2y-5}  = 4-8

\sqrt{2y-5}  = -4

Taking the square on both sides, we get

(\sqrt{2y-5})^2  = (-4)^2

Square will cancel the impact of square root, therefore:

({2y-5})  = 16

2y = 16+5

2y = 21

y = \frac{21}{2}

y = 10.5

Therefore, the root of \sqrt{2y-5} +8 = 4 is 10.5.  

5 0
3 years ago
3/2 inches snow fell in 3/4 of an hour which two statements are true
dem82 [27]

Answer:

I don't see the two statements

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • What are the coordinates of the image of Q for a dilation with center (0, 0) and scale factor 1/2?
    9·1 answer
  • Sarah makes $10 an hour babysitting and $5 an hour gardening. her goal is to make $80 a week while working 12 hours. how many ho
    12·1 answer
  • A rectangle or table top has a length of 4 3/4 feet in an area of 11 7/8 ft.² what is the width of the table top
    14·1 answer
  • Use the graph of each function to describe its end behavior. *
    6·1 answer
  • Solve Gx) for the given domain.
    8·1 answer
  • The data in the table were collected from two random samples of 50 students. Stuudents were asked their favorite recreational ac
    11·2 answers
  • Find the area of the triangle. Round your answer to the nearest tenth. Triangle ABC Line AB =15 yd, Line AC = 15 yd, ∠A= 48° a.
    5·1 answer
  • suppose a triangle had two sides of length 2 and 3 and that the angle between there two sides is 60. what is the length of the t
    7·1 answer
  • When Ava went to bed, the temperature was 3°F. When she woke up, the temperature had decreased by 6°F.
    5·2 answers
  • PLEASE HELP!! There are 64 passengers on a morning bus. Of these passengers, 35 need transfers and 39 are going to work. There a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!