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
sasho [114]
2 years ago
10

Question is in png pls help!

Mathematics
1 answer:
nika2105 [10]2 years ago
7 0

Answer:

12

Step-by-step explanation:

Since a circle is 360 degrees all you do is 360/30 since that's the angle of your original "piece" which would get you 12 pieces

You might be interested in
Which best describes the transformation that occurs from
Law Incorporation [45]

Answer:

right 2 , up 3.

Step-by-step explanation:

The -2 moves 2 to the right and the + 3 means 3 up.

6 0
3 years ago
Please help due in 3 minutes will give brainliest.
Ann [662]
It is number 3 like the 3rd option
6 0
2 years ago
Read 2 more answers
Select the postulate of equality or inequality that is illustrated.
Mademuasel [1]

Answer: Comparison Postulate

This is the idea that exactly one statement shown below is true

a > b

a = b

a < b

So if you compare two numbers, then either the left value is larger, the left is smaller, or the the left is the same as the value on the right.

4 0
3 years ago
The National Center for Education Statistics reported that 47% of college students work to pay for tuition and living expenses.
Luden [163]

Using the z-distribution, it is found that the 95% confidence interval for the proportion of college students who work to pay for tuition and living expenses is: (0.4239, 0.5161).

If we had increased the confidence level, the margin of error also would have increased.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96. Increasing the confidence level, z also increases, hence the margin of error also would have increased.

The sample size and the estimate are given as follows:

n = 450, \pi = 0.47.

The lower and the upper bound of the interval are given, respectively, by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.47 - 1.96\sqrt{\frac{0.47(0.53)}{450}} = 0.4239

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.47 + 1.96\sqrt{\frac{0.47(0.53)}{450}} = 0.5161

The 95% confidence interval for the proportion of college students who work to pay for tuition and living expenses is: (0.4239, 0.5161).

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

5 0
1 year ago
What are the zeros of g(x)= x³ + 6x² - 9x-54?
Veseljchak [2.6K]

Answer:

3,-3

Step-by-step explanation:

g(3)= (3)³+6(3)²-9(3)-54

= 27+54-27-54

=81-81

= 0

g(-3) = (-3)³+6(-3)²-9(-3)-54

= -27+54+27-54

= 27-27

= 0

For more information comment me !

STAY CONNECTED

3 0
1 year ago
Other questions:
  • Express 754,000,000 in scientific notation
    14·1 answer
  • Round 0.868 to the nearest tenth.
    12·2 answers
  • Find the value of a and b<br><br> a^2 + b^2 = 400
    9·2 answers
  • Find dy/dx if f(x) = (x + 2)^7x.
    15·1 answer
  • *HELP ASAP!* For a store contest, 4 out of every 65 people who visit the store will receive a free DVD. If 455 people visit the
    8·2 answers
  • I need help on my math
    12·2 answers
  • A news report says that 9% of middle school students are on the track team.
    6·1 answer
  • An umbrella sprinkler is positioned on a ceiling at a point whose x- coordinate is 0. Negative values of a indicate distances, i
    8·1 answer
  • Show that sec^2x+csc^2x/sec^2xcsc^2x
    7·1 answer
  • Use graphing technology to find the range of the function f(x)=-x^2+4.f(x)=−x <br> 2<br> +4.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!