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
Levart [38]
4 years ago
10

Calculate the center angle a if the lenght of the circular arc 31,4cm and the radius of the circle 9cm​

Mathematics
2 answers:
Fed [463]4 years ago
3 0

Answer:

3.49 radians

Step-by-step explanation:

The arc length formula is s = rФ, where r is the radius and Ф is the central angle.  We know s and r and need to calculate Ф.

From s = rФ we get Ф = central angle = s/r

Here, that central angle Ф is (31.4 cm) / 9 cm = 3.49 radians

DanielleElmas [232]4 years ago
3 0

Answer:

3.48 radian

Step-by-step explanation:

length of arc= radius * center angle

31.4 = 9 * angle

angle is in radian

You might be interested in
Pick out the composite numbers from the following numbers:
Anna35 [415]

Answer:

35, 39, 44, 52, 55, 57, 60, 69

Step-by-step explanation:

Composite numbers have multiple factors other than 1 and itself.

7 0
3 years ago
HELP HELP HELP
masya89 [10]

Answer: y=4x+6.

Step-by-step explanation:

(-3,-6)    k=4     y=kx+b ?

y=4x+b

-6=4*(-3)+b

-6=-12+b

-6+12=-12+12+b

6=b.

Hence,

y=4x+6.

6 0
2 years ago
Which of the following is the definition of y-intercept? the value where the line crosses the x-axis the value where the line cr
Trava [24]

Answer:the value where the line crosses the y axis

Step-by-step explanation:

its crossing through the y-axis not the x-axis because. The y-intercept is where the line crosses the y-axis.  for example, you see the line cuts across the y-axis at -2. This makes our y-intercept -2.

3 0
3 years ago
If the measure of arc AB is 45 degrees and the radius is 12 meters, what is the arc length of arc AB?
dalvyx [7]

Answer:

9.42 m

Step-by-step explanation:

Arc AB = 2πr x (45/360)

           = (2 x 3.14 x 12) / 8

           = 9.42

3 0
3 years ago
What is the conjugate?
nata0808 [166]
A conjuate is real numbers like the conjuate of x and y would be a real number
7 0
4 years ago
Other questions:
  • 27 is 6 more than 3 times a number. What is the number.
    13·2 answers
  • The parametric equations x=t-2, y=4t-6 describe which line?
    5·1 answer
  • Which of the following shapes, when flopped, will always coincide with the original shape?
    6·1 answer
  • What is the value of y?​
    15·1 answer
  • What adds to negative 2 and multiplies to negative 48
    5·1 answer
  • 1/8 of a number is -4200. What is the number: -33,600 -37 800 -42,000 -42,800
    10·1 answer
  • A cylinder and a cone are shown below.
    8·2 answers
  • A cylinder has a height of 13 feet and a radius of 11 feet. What is its volume? Use a ~ 3.14
    15·1 answer
  • There are 15 marbles in a bag. Two marbles are white, five are blue, and eight are red. You pick two marbles out of the bag, wit
    13·1 answer
  • 24 is 3/4 of ___<br><br> Find the answer
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!