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
inessss [21]
3 years ago
8

In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet. Find the measure of minor arc AB to the nearest degree

.

Mathematics
2 answers:
PIT_PIT [208]3 years ago
8 0

Answer:

Step-by-step explanation:

Length of a circular arc is given by:

S = rФ

where Ф is the angle in radians subtended at the center by the arc.

Ф = S/r = 4.2 / 4 = 1.05 radians = (1.05*180)/π = 60.16° ≅ 60°

Measure of minor arc AB is 60°

Degger [83]3 years ago
4 0

The formula for arc length is s=r*angle theta where s is the arc length, r is the radius, and angle theta is central angle formed by the arc in radians.

In this case, the angle would be s/r or 4.2/4  which is 1.05 radians. We have to convert this into degrees and so you would multiply 1.05 by (180/pi) which results in approximately 60 degrees. Remember, if you want to convert radians into degrees, the conversion factor is 180/pi and for degrees into radians, it is pi/180.

You might be interested in
A coordinate grid is shown below: A coordinate grid from negative 2 to 0 to positive 2 is drawn. There are three grid lines betw
Anastasy [175]

Answer:

Part A: 0

Part B: (-1,-1) since point (-1,1) is located in quadrent four when it is reflected over the y axis the second point would be located in quadrent three and the x and y would both be negative.

Step-by-step explanation:

3 0
2 years ago
A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur
ICE Princess25 [194]

Answer:

Option C) 5.62 points  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

=n-1\\=20-1\\=19

We have to calculate margin of error for a 95% confidence interval.

Formula for margin of error:

t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093  

2.093\times (\displaystyle\frac{12}{\sqrt{20}} )\\\\ =5.6161\approx 5.62  

Thus, the correct answer is

Option C) 5.62 points

4 0
3 years ago
What is the value of an of the geometric series?<br> -<br> n=1
scZoUnD [109]
I think m=2... i think..still learning this subject
3 0
3 years ago
Which problem can be solved with this equation?
shtirl [24]

Answer:

I believe the answer is B

3 0
2 years ago
Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of t
Assoli18 [71]

Answer: B) y= 2/3x - 3

Step-by-step explanation:

On edge

3 0
3 years ago
Other questions:
  • If a toy is 420$ and it is 69% off, how much is it
    14·2 answers
  • four balls of wool will make 8 knitted caps. How many balls of wool will Malcolm need if he wants to make 6 caps?
    11·1 answer
  • Please help me on this question please
    10·1 answer
  • I'am thinking of two numbers. The difference of the two numbers is 36. Their sum is 286. What are the two numbers?
    10·1 answer
  • What is d/5&gt;4? inequalities
    15·1 answer
  • Choose the equation that represents the line that passes through the point (2, 6) and has a slope of −5.
    9·2 answers
  • 25x -5 + 32 = (when x = 3)
    10·2 answers
  • For f(x) = 4x + 2 and g(x) = x^2 - 6, find (f+g)(x)
    14·1 answer
  • Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is
    9·1 answer
  • What is the value of x? please help me! <br><br> A. 43<br> B. 62<br> C. 105<br> D. 115
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!