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
Olin [163]
3 years ago
8

8 please this is due tomorrow and I really need it I will give brainliest answer=)))))))):))))))

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
3 0
The Correct Answer= $18
You might be interested in
The volume of the prism is 234 cubic units. What is the height of the prism? 3 units 4 units 6 units 8 units
mojhsa [17]

Answer:

8

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
In ΔHIJ, the measure of ∠J=90°, IJ = 47 feet, and HI = 68 feet. Find the measure of ∠H to the nearest degree.
TEA [102]

Answer:

44

Step-by-step explanation:

8 0
3 years ago
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by th
monitta

Answer:

a) n =1623

b) ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208    

Step-by-step explanation:

1) Notation and definitions

n random sample taken

\hat p=0.19 estimated proportion of customers are not satisfied with the service provided by the local dealer

Confidence =0.96 or 96%

Me= 0.02 represent the margin of error

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 population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Part a

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 96% of confidence, our significance level would be given by \alpha=1-0.96=0.04 and \alpha/2 =0.02. And the critical value would be given by:

z_{\alpha/2}=-2.0538, z_{1-\alpha/2}=2.0538

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.02 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.19(1-0.19)}{(\frac{0.02}{2.0538})^2}=1622.912  

And rounded up we have that n=1623

Part b

The margin of error is given by:

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    

So then if w replace the value of n obtained from part a we got:

ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208    

3 0
3 years ago
Solve for n.<br> n^2–15n–16=0
Fofino [41]
N =  {15   +-  root of ( 225 + 64)  } / 2
  =  {15  +-  root of 289  } / 24
  = 15 + 17 } / 2   or  { 15 -17 } /2 
 = 16  or  -1


5 0
3 years ago
I'm so sorry be can you guys help me out here?
Yuki888 [10]

Answer:

Step-by-step explanation:

value of 6n-2 when n=3 is 6(3)-2 = 18-2 = 16

6 0
2 years ago
Read 2 more answers
Other questions:
  • Which is the ordered pair for the point on the x-axis that is on the line parallel to the given line and through the given point
    14·2 answers
  • Geometry help????????
    6·1 answer
  • Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebr
    11·2 answers
  • Ab + c = d solve for b.
    15·1 answer
  • if the length of the line arc is 3 cm and the radius is 10 cm calculate the angle at the center of the circle
    5·2 answers
  • The answer to the question
    11·2 answers
  • Help please, :(((((((((((((((((((
    5·2 answers
  • Def:This is what we call the money you get back when you pay for something.<br><br>term:
    13·1 answer
  • I need help with this I'm confused I need an exact answer please I will give the brainliest promise.
    14·2 answers
  • The equation f = V + at represents the final velocity of an object, f, with an initial velocity, w, and an acceleration rate,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!