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
cestrela7 [59]
3 years ago
7

An ant is walking around the perimeter of a circular wreath with a radius of 8 inches. If the ant walked 21 inches, how many rad

ians is the central angle that intercepts the ants path?
Mathematics
1 answer:
Butoxors [25]3 years ago
6 0

The movement of the ant illustrates the length of an arc

The measure of the central angle is 2.625 radians

<h3>How to determine the central angle</h3>

The radius of the arc is given as:

r = 8

The distance walked is given as:

L = 21

The length of an arc is

L = r\theta

So, we have:

21 = 8\theta

Divide both sides by 8

\theta = \frac{21}{8}

Divide

\theta = 2.625

Hence, the measure of the central angle is 2.625 radians

Read more about length of arc at:

brainly.com/question/2005046

You might be interested in
What is the area of the parallelogram 4cm 5cm 9cm
Alenkasestr [34]

Answer:

Step-by-step explanation:

180

6 0
4 years ago
Read 2 more answers
Ayden had a goal of finishing painting at least 80% of the 500 square meters of a house's wall by today. He actually finished pa
Kisachek [45]
Hey You!

We must know what 80% of 500 is:

500 * 80% = 400

Ayden did meet is goal, because his goal was 400 and he painted 415 squares (Which is beyond his goal).
3 0
4 years ago
The probability distribution of a random variable X is given. x 1 2 3 4 P(X = x) 0.4 0.1 0.3 0.2 Compute the mean, variance, and
Readme [11.4K]

Mean:

E(X) = \displaystyle \sum_{x\in\{1,2,3,4\}}x\,P(X=x) = 1\times0.4 + 2\times0.1 + 3\times0.3 + 4\times0.2 = \boxed{2.3}

Variance:

\displaystyle V(X) = E\left((X-E(X))^2\right) = E(X^2) - E(X)^2 \\\\ E(X^2) = \sum_{x\in\{1,2,3,4\}}x^2\,P(X=x) = 1^2\times0.4 + 2^2\times0.1 + 3^2\times0.3 + 4^2\times0.2 = 6.7 \\\\ \implies V(X) = 6.7 - 2.3^2 = \boxed{1.41}

Standard deviation:

\sigma_X = \sqrt{V(X)} = \sqrt{1.41} \approx \boxed{1.19}

5 0
3 years ago
It is estimated that 18 out of every 25 shoppers between the age of 18 and 34 research purchases online before going to a store.
Galina-37 [17]

Answer: 0.72

Step-by-step explanation:

Given:  18 out of every 25 shoppers between the age of 18 and 34 research purchases online before going to a store.

Fraction of shoppers between the age of 18 and 34 research purchases online before going to a store =\dfrac{18}{25}

In decimal , \dfrac{18}{25}=\dfrac{18}{25}\times\dfrac{4}{4}=\dfrac{72}{100}=0.72

Hence, this value written as a decimal = 0.72

6 0
3 years ago
Ernie read 3y+4 books. Gladice read 4y-5. For what value of y will both of them read the same number of books?
sashaice [31]
Th answer is 7b because if u look at it 3y+4 and plus two mimic ome
4 0
3 years ago
Other questions:
  • Brett is 75 feet from the base of a building. he measures the angle of elevation to the top of the building and records it as 80
    6·1 answer
  • 1.) 3.4 + .95 +89<br> 2.) 5.9 +.85 +.832
    11·2 answers
  • Estimate. 6.13/3 Choose 1 answer: a 2 b20 c200 d2000
    12·1 answer
  • HELPPPPPPPPPPPP]PPPPPP​
    14·2 answers
  • Please help me, I don't know how to solve it
    9·1 answer
  • Pls help <br> What is the value of t? <br> A. 150<br> B. 60<br> C. cannot be determined<br> D. 30
    14·1 answer
  • Smart people I need you i'll give brainlist to person who answers
    8·1 answer
  • 10+s=-4 help yall asap this is mad hard
    12·2 answers
  • Plz help!! 30 points!!
    15·1 answer
  • A man ordered 4 times as many boxes of ballpoint pens as boxes of felt-tip pens. Ballpoint pens cost $4.41 per box, and felt-tip
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!