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
marysya [2.9K]
1 year ago
8

For the following, find the arc length:

Mathematics
1 answer:
Sophie [7]1 year ago
8 0

Answer:

x = 10.47

Step-by-step explanation:

circumference = 2 * 10 * π = 20π


centre angle of a circle (in radiant) = 2π


x : 20π = π/3 : 2π

x = (20π * π/3)/ 2π

x = 10 * π/3

x = 10π/3

x = 10.466667

x = 10.47

You might be interested in
A professor wants to estimate how many hours per week students study. A simple random sample of 78 students had a mean of 15.0 h
OleMash [197]

Answer:

interval=(15.085,14.9515)

Step-by-step explanation:

Table:

CI                                             Z

85%                                     1.440

90%                                     1.645

95%                                     1.960

In order to find the interval/estimate of hours per week students study we consider the formula given below:

Interval=X±\frac{Z*S}{\sqrt{n} }

where:

X is the mean hours

Z is the value from Z distribution table of Confidence Interval

n is the sample size of students

S is the standard deviation

X=15, Z=1.645, S=2.3hours, n=78

Interval=15±1.645*2.3/\sqrt{78}

Interval=15±0.0485

interval=(15.085,14.9515)

7 0
3 years ago
What is the slope of the line shown on the grid?
krek1111 [17]

Answer:

1/5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A movie theater charges $5 for an adult’s ticket and $2 for a child’s ticket. one saturday, the theater sold 785 tickets for $32
adelina 88 [10]

Answer:

Step-by-step explanation:

child tickets sold= 215  adult tickets sold= 570

3 0
3 years ago
When 9 is subtracted from a number and then divided by 2, the answer is<br> 4. What is the number?
tamaranim1 [39]
That doesn’t make since
5 0
3 years ago
Read 2 more answers
Mr.Davis's students were surveyed on their favorite subject. One fifth prefer math, 0.35 prefer social studies, and 45% prefer r
lara [203]

its already in order


7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the order, from narrowest to widest graph, of the quadratic functions f(x) = –10x², f(x) = 2x², f(x) = 0.5x²?
    11·1 answer
  • 3. Given ABCD ≅ FGHJ and mC = 9x - 7, mH = 5x + 13, find the value of x and the measures of angle C and angle H. Show all work
    11·1 answer
  • The length of a rectangle is 5 more than twice its width. if the perimeter of the rectangle is 82 centimeters, find its length a
    10·1 answer
  • What is square root 30 in simplified form?
    9·2 answers
  • A right triangle has a leg length of 12 and a hypotenuse length of 18. What is the length of the other leg?
    13·1 answer
  • What is the relationship among the numbers and symbols in the expression 24 ÷ (3 + 5)? Choose all answers that are correct. A. T
    6·2 answers
  • Which of the following statements represents one of the differences between an experiment and an observational study?
    14·1 answer
  • Use a net to find the surface area of the cylinder. Use 3.14 for for pi.
    12·1 answer
  • Question in picture solve
    15·2 answers
  • TO GET BRAINLIEST YOU NEED TO ANSWER ALL 3 QUESTIONS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!