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
Tanya [424]
3 years ago
8

....................................................................

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0
The answer is negative twenty five. By the way, if that is you in the picture, you are beautiful.
You might be interested in
Which is the graph of g(x) = (x + 3?
Rasek [7]

Answer:

second graph

Step-by-step explanation:

5 0
3 years ago
What is the value of x? 6x - 2x = 16
agasfer [191]

6x - 2x = 16

4x = 16    |divide both sides by 4

<h3>x = 4</h3>
5 0
3 years ago
Read 2 more answers
If Upper X overbar equals 62​, Upper S equals 8​, and n equals 36​, and assuming that the population is normally​ distributed, c
marishachu [46]

Answer:

The 99% confidence interval would be given by (58.373;65.627)    

We are 99% confident that the true mean for the variable of interest is between 58.373 and 65.627.

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=62 represent the sample mean

\mu population mean (variable of interest)

s=8 represent the sample standard deviation

n=36 represent the sample size  

Part a: 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=36-1=35

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,35)".And we see that t_{\alpha/2}=2.72

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

62-2.72\frac{8}{\sqrt{36}}=58.373    

62+2.72\frac{8}{\sqrt{36}}=65.627    

So on this case the 99% confidence interval would be given by (58.373;65.627)    

We are 99% confident that the true mean for the variable of interest is between 58.373 and 65.627.

3 0
3 years ago
If the function f is given by f(x)=2x2−4, then which of the following represents the value of c such that f(c)=28?
Zigmanuir [339]
I believe the answer is C. 4
4 0
3 years ago
Tasha invests in an account that pays 1.5% compound interest annually. She uses the expression P(1+r) to find the total value of
allsm [11]
After 5 years she will have $3231.852

5 0
3 years ago
Other questions:
  • ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g
    8·1 answer
  • Hassan has 183/4 yard of fabric it takes 31
    6·1 answer
  • I need help ASAP, if you can. My problem is 3y-1(divided by)2=Z. I need to find Y.
    7·2 answers
  • A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is
    7·1 answer
  • Evaluate y^0. Please show working out. Thank you
    12·1 answer
  • Jan wants to protect the wooden box in question 4a by painting varnish on all of the outside surfaces, including the bottom. Wil
    7·1 answer
  • Can someone pleaseeee help and if you’re correct I’ll give u brainlist!
    14·1 answer
  • How do you multiply ​
    12·1 answer
  • Calculate the answer to the correct number of significant digits. (91.01)(10.7)
    14·1 answer
  • B) The perimeter of a squared field is 60 m. Find its area.<br>​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!