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
AlekseyPX
3 years ago
9

Qual é o comprimento do arco correspondente a um ângulo ao centro de 45 graus, numa circunferência de raio 3 cm ?

Mathematics
1 answer:
beks73 [17]3 years ago
8 0

Answer:

2.4 m

Step-by-step explanation:

A fórmula para o comprimento do arco é dada como:

Comprimento do arco = 2πr (θ / 360)

Onde r = raio = 3cm

θ = Ângulo em graus = 45 °

Comprimento do arco = 2 × π × 3 (45/360)

Comprimento do arco = 2.356194m

Aproximadamente = 2.4 m

You might be interested in
Pythagorean Brotherhood was a secret society but a little is known about it. Suggest principles of their education. Discuss the
yan [13]

Answer:

They use Phylosophy as a means of Spiritual cleansing.

The Pythagorean theorem.

The Demand that members must live in strict secrecy and loyalty.

The appeal to certain symbols like Tetraktys etc.

They believe the soul is destined for heaven,where it will United with the Divine.

They believe that reality including music and astronomy when at their repeat level are Mathematical in nature.

Step-by-step explanation: The Pythagorean brotherhood is believed to have originated from Sounthern Italian city known as Croton. It was started by a man called Pythagoras from Samos Greece, he is a controversial phylosopher.

The Pythagorean brotherhood formulated one the most widely used Theorems in Geometry which states that THE SQUARE OF THE HYPTHEMUS OF A RIGHT ANGLED TRIANGLE IS EQUAL TO THE SQUARE OF THE OPPOSITE AND THE BASE.

6 0
3 years ago
To make a sauce for the chicken, he will use 0.3 cup of broth per serving of chicken. He has a container with 1.75 cups of broth
xeze [42]

Answer:

Just divide both answer

Step-by-step explanation:

0.3 ÷1.75 or switch it around if it dont work

7 0
3 years ago
Plz help I have to turn it it by midnight!!!!!
brilliants [131]

Step-by-step explanation:

The perimeter of a polygon is the sum of all of the polygon's sides. Here, a rectangle has 4 sides:

Perimeter of Rectangle

= 2 + (4x - 3) + 2 + (4x - 3)

= (8x - 2)cm.

4 0
3 years ago
Read 2 more answers
How to solve : 16=2t + 0.25 t``squar​
Marysya12 [62]

Answer:

The solutions of the equation are t = 4(√5 + 1) or 4(√5 - 1).

Step-by-step explanation:

We have to solve the given quadratic equation of single variable t.

The equation is 16 = 2t + 0.25t²

⇒ 0.25t² + 2t - 16 = 0

⇒ 25t² + 200t - 1600 = 0 {Multiplying both sides with 100}

⇒ 25t² + 200t + 400 - 400 - 1600 = 0

⇒ (5t + 20)² - 2000 = 0

⇒ (5t + 20)² - (20√5)² = 0

⇒ (5t + 20 + 20√5)(5t + 20 - 20√5) = 0

So, (5t + 20 + 20√5) = 0 or, (5t + 20 - 20√5) = 0

⇒ (t + 4 + 4√5) = 0 or, (t + 4 - 4√5) = 0

⇒ t = - 4(1 + √5) or, t = 4(√5 - 1) (Answer)

8 0
3 years ago
Suppose that fund-raisers at a university call recent graduates to request donations for campus outreach programs. They report t
Flura [38]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

In point a:

It's also expected that approximately 1000 \times  0.40 =400 of both, the students contribute zero, approximately 1000 \times 0.30 =300 to donors $10, approximately 1000 \times  0.25 = 250 donors $25, and then about 1000 \times 0.05 = 500 dollars $50 donors. Its frequencies would be similar to and not precisely, the probability. The four levels will stack up to a thousand.

In point b:

It is the population, in which the key value of x is a $0 donation ( 40 percent of students do this).

In point c:

\to P(X \geq 25) \\\\\to 0.25+0.05 \\\\\to  0.30

In point d:

\to P(X>0)\\\\ \to 1-P(X=0)\\\\ \to 1- 0.40\\\\\to 0.60\\\\

5 0
3 years ago
Other questions:
  • Line L passes through the points (1, 1) and (7, 8). What is the slope of a line that is perpendicular to line L?
    15·1 answer
  • Steve,Jerry and Ron were paid $29.25 to remove garden gnomes. They each worked 4 hours, exempt for Ron, who was 1 hour late. How
    5·1 answer
  • 32gal/min = how many qt/hr
    12·1 answer
  • PLEASE PLEASE PLEASE HELP ME ANSWER THIS QUESTION QUICK!! The picture of the question is down below.
    12·1 answer
  • A small cube with side length 6y is placed inside a larger cube with side length 4x^2. What is the difference in the volume of t
    14·2 answers
  • How do you create a model of 15% of 60
    13·1 answer
  • PLEASE HELP ASAP ILL GIVE BRAINLIEST
    7·1 answer
  • Please help me please i really need help please
    6·2 answers
  • Write the slope intercept form of the equation of the line through the given point
    8·1 answer
  • A business rents cars for $100 a day and vans for $200 a day. One day, it rented a total of 22 vehicles
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!