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
notka56 [123]
4 years ago
12

Compare the three equation and make a statement to describe them

Mathematics
1 answer:
boyakko [2]4 years ago
4 0

Answer:

What equation?

You might be interested in
Direct mail advertisers send solicitations​ ("junk mail") to thousands of potential customers in the hope that some will buy the
Arte-miy333 [17]

Answer:

The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 1160, \pi = \frac{144}{1160} = 0.1241

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1241 - 1.645\sqrt{\frac{0.1241*0.8759}{1160}} = 0.1082

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1241 + 1.645\sqrt{\frac{0.1241*0.8759}{1160}} = 0.14

The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%

3 0
4 years ago
And the cross-section perpendicular to the yaxis is a square. Set up a definite integral expressing the volume of the solid
zheka24 [161]

The volume of the cross-section perpendicular to the solid is the amount of space in the cross-section

<h3>How to set up the integral?</h3>

The question is incomplete;

So, I will give a general explanation on how to set up a definite integral for volume of a solid

Assume the solid is a cone;

Using the disk method, the integral of the volume is:

V = \int\limits^a_b {\pi r(x)^2} \, dx

Using the washer method, the integral of the volume is:

V = \int\limits^a_b {\pi [R(x)^2 -r(x)^2 ]} \, dx

Read more about volume integrals at:

brainly.com/question/18371476

4 0
2 years ago
Calculate the perimeter
Leto [7]

Answer:

48m

Step-by-step explanation:

12m - 4m = 8m / 2 = 4

12m + 4m + 4m + 4m + 4m + 8m + 8m + 4m = 48

3 0
3 years ago
How many seconds in 4 minutes? its for PE class-
Brums [2.3K]

the answer is 240 seconds :)

give the other person brainliest

8 0
3 years ago
Read 2 more answers
Solve: 10(1 – 2y) = –5(2y – 1)
FinnZ [79.3K]

Answer:

Y= 1/-2

Step-by-step explanation:

10(1-2y)=5(2y-1)

10-20y= -10y+5

10+5= -20y-10y

15= -30y

y= 15/-30 or 1/-2

3 0
4 years ago
Other questions:
  • The weight of an elephant is 10 to the third times the weight of a cat. If the elephant weighs 14,000 pounds how many pounds doe
    8·2 answers
  • What are the missing angles?
    14·2 answers
  • Stephanie puts 30 cubes in a box. the cubes are 1/ inch on each side. the box holds two layers with 15 cubes in each layer. what
    5·1 answer
  • If a polygon has eight sides then it is an octagon. True or False
    14·1 answer
  • Which statement is true.
    7·1 answer
  • For her science fair project, Emily
    13·1 answer
  • I need help with this plz
    7·1 answer
  • Please someone help me
    11·1 answer
  • What is -6p - 3 = 9 plz help quick​
    10·1 answer
  • Please HELP ill mark u BRAINLIEST IF U DO ACTUALLY HELP ME.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!