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
Oxana [17]
3 years ago
9

What’s the difference between an ark and a radius on a circle?

Mathematics
1 answer:
Ainat [17]3 years ago
6 0

Answer:

Step-by-step explanation:

The arc of a circle is a portion of the circumference of a circle and the radius is a straight line from the center of a circle to the circumference of a circle.

You might be interested in
A CBS News/New York Times opinion poll asked 1,190 adults whether they would prefer balancing the federal budget over cutting ta
nikklg [1K]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sampling proportions of a proportion p in a sample of size n has mean \mu = p and standard error s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • 1,190 adults were asked, hence n = 1190
  • In fact 62% of all adults favor balancing the budget over cutting taxes, hence p = 0.62.

The mean and the standard error are given by:

\mu = p = 0.62

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.62(0.38)}{1190}} = 0.0141

The probability of a sample proportion of 0.59 or less is the <u>p-value of Z when X = 0.59</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.59 - 0.62}{0.0141}

Z = -2.13

Z = -2.13 has a p-value of 0.0166.

0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

You can learn more about the <u>normal distribution and the central limit theorem</u> at brainly.com/question/24663213

7 0
2 years ago
Solve.
Nat2105 [25]

The solution to the algebraic equation, −0.4x − 3.1 = 5.9, is:<u> x = -22.5</u>

Given the algebraic equation, −0.4x−3.1 = 5.9, to solve for x, follow the steps below:

−0.4x − 3.1 = 5.9

  • Add 3.1 to both sides

−0.4x − 3.1 + 3.1 = 5.9 + 3.1

-0.4x = 9

  • Divide both sides by -0.4

-0.4x/-0.4 = 9/-0.4

x = -22.5

Therefore, the solution to the algebraic equation, −0.4x − 3.1 = 5.9, is:<u> x = -22.5</u>

<u></u>

<u></u>

Learn more here:

brainly.com/question/16864747

7 0
2 years ago
Which sequence is geometric and has 1/4 as it’s fifth term and 1/2 as common ratio is it A)...,1,1/2,1/4,1/8,...
Tresset [83]
A) ...,1,1/2,1/4,1/8,...
7 0
3 years ago
Read 2 more answers
What is the value of x in the equation 150/84 = 25/x
Fofino [41]

Answer:

x = 14

Step-by-step explanation:

\frac{150}{84}  =  \frac{25}{x}  \\  \\ 150 \times x = 84 \times 25 \\  \\ x =  \frac{84 \times 25}{150}  \\  \\ x =  \frac{84}{6}  \\  \\ x = 14 \\

5 0
3 years ago
Read 2 more answers
One angle of a right triangle measures 80degrees.what is the measure of the other acute angle
Damm [24]

Answer:

10 degrees

Step-by-step explanation:

1.) every triangle has angles that add up to 180 degrees

2.) a right triangle has a right angle and two acute angles

3.) right=90 degrees; acute=<90 degrees

4.) 90+80=170

5.) 180-170=10

3 0
2 years ago
Read 2 more answers
Other questions:
  • For which value of x is the equation 3x + x = 2x + 24 true?
    10·1 answer
  • It takes 22 minutes for 10 people to paint 10 walls. How many minutes does it take 14 people to paint 14 walls?
    10·2 answers
  • These two scalene triangles are similar with a scale of 7:47:4. What is true about these figures?
    14·1 answer
  • A rectangular rug is 12.5 feet long and 10 feet wide. The rug needs to be reduced by a factor of es026-1.jpg to be placed near a
    5·2 answers
  • How do you simplify 80/36
    10·1 answer
  • For every 10 middle school students in the us, 6 play sports. If there are 956 students how many play?
    10·1 answer
  • A rectangle is 5 meters longer than its width. If the length is shortened by 2 meters and width is increased by 1 meter, the are
    6·1 answer
  • a block has two red sides, two green sides, one blue side and one yellow side what is the probability that when the block is rol
    13·2 answers
  • So easy
    15·2 answers
  • Please help and fill all the spaced, thank you.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!