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
satela [25.4K]
2 years ago
13

Write an equivalent expression in word form. (1- 1/3) / 2

Mathematics
2 answers:
Oksi-84 [34.3K]2 years ago
8 0
One third taken away from one, halved
or
half of one minus one third
KonstantinChe [14]2 years ago
3 0

Answer:

21

Step-by-step explanation:

You might be interested in
From 19 measurements of a pressure controller, the mean operating pressure is 4.97 kPa with a standard deviation of 0.0461 kPa.
Semenov [28]

Answer:

4.97-2.10\frac{0.0461}{\sqrt{19}}=4.95    

4.97+2.10\frac{0.0461}{\sqrt{19}}=4.99    

So on this case the 95% confidence interval would be given by (4.95;4.99)  

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".

\bar X =4.97 represent the sample mean

\mu population mean (variable of interest)

s=0.0461 represent the sample standard deviation

n=19 represent the sample size  

Confidence interval

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

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=19-1=18

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,18)".And we see that t_{\alpha/2}=2.10

Now we have everything in order to replace into formula (1):

4.97-2.10\frac{0.0461}{\sqrt{19}}=4.95    

4.97+2.10\frac{0.0461}{\sqrt{19}}=4.99    

So on this case the 95% confidence interval would be given by (4.95;4.99)    

5 0
3 years ago
Someone purchase 12 books. But needs 4 books for each of the projects ar school. How many projects would they need
Fudgin [204]
3 projects.
12/4=3. Please mark me brainliest rly wanna mark up!
7 0
3 years ago
During track practice,Jonathan ran 5kilometers.Rod ran 4,250 meters.Who ran further?Explain
svp [43]

Dvbjddcnlkhgvvnjg ghjrkjd

3 0
3 years ago
Solve the equation, round number the the nearest hundredth if needed.
Elza [17]

12+6/7n=-25n   add 25n and subtract 12 on both sides

25 6/7n=-12   convert to improper fraction

181/7n=-12   multiply both sides by seven to clear the fraction

181n=-84   divide both sides by 181 to get your answer

n= -.46   hope that helps..

4 0
3 years ago
What is the sum of the polynomials?<br>11x2-5<br>+ x+4​
Paul [167]

Answer:

23x-1

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A triangle has an area of 1102 m², and two of the sides of the triangle have lengths 60 m and 56 m. find the angle included by t
    8·1 answer
  • Cate and Elena were playing a card game. The stack of cards in the middle had 24 cards in it to begin with. Cate added 8 cards t
    9·2 answers
  • Emily measures a prize wheel at a carnival and calculates that it has an area of 3.14 square feet. What is the prize wheel's cir
    14·1 answer
  • Determine whether you would take a census or use a sampling to collect data for the study described below. If you would use a​
    14·1 answer
  • What is the equation of the line through (−2, −2) and (4, −5)
    9·2 answers
  • Using the interquartile range (IQR), determine if the data set contains any outliers. Name the outlier or choose No outliers.
    7·1 answer
  • Ike Phillips worked 6.7 hours at time-and-a-half pay and 3.4
    10·1 answer
  • Show your work on how u would get the answer<br><br> ANSWER: 6x-2
    13·1 answer
  • I WILL GIVE BRAINLY POINTS!!!
    14·2 answers
  • If m=5 and n = 2, find the value of 3mn
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!