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
OLga [1]
3 years ago
8

What is the arc length if the radius of the circle is 15 and the angle og the sector id 90 degrees

Mathematics
1 answer:
Sergio039 [100]3 years ago
5 0

<u>Answer:</u>

P = 53.6 square cm

<u>Step-by-step explanation:</u>

We know that the measure of an arc of a sector is given by: P=\theta r+2r

Where \theta  is the angle of the arc of the sector (radian) while r is the radius of the circle.

Here, \theta = 90°=\frac{\pi }{2}.

Substituing the given values to get:

P=\frac{\pi}{2}(15)+2\times 15

P = 53.6 square cm

You might be interested in
Jackson says he has an odd number of model cars. He has 6 cars on one shelf and 8 cars on another shelf. Is Jackson correct? Exp
Kisachek [45]
<span>No Jackson incorrect because 6&8even number 6+8=14 even.</span>
7 0
3 years ago
A square with an area of 64 in2 is rotated to form a cylinder. What is the radius of the cylinder?
romanna [79]
The area of the square is calculated through the equation,

                               Area = e²

where e is the measure of sides.
 
From the given,

                              64 = e²
                               e = sqrt 64 = 8 inches

The length of the side of the square rotated to form the cylinder is the diameter of the base of the cylinder. To get the radius, we divide the diameter by 2.

                             radius = 8 inches / 2 = 4 inches

Thus, the radius of the cylinder is equal to <em>4 inches</em>. 
5 0
3 years ago
The CEO of a local tech company wants to estimate the proportion of employees that are pleased with the cleanliness of the break
Zigmanuir [339]

Answer:

Methods of obtaining a sample of 600 employees from the 4,700 workforce:

Part A:  The type of sampling method proposed by the CEO is Convenience Sampling.

Part B: When there are equal number of participants in both campuses, stratification by campus would give a more precise approximation of the proportion of employees who are satisfied with the cleanliness of the breakrooms than stratification by gender.  Another method to ensure that stratification by campus gives a more precise approximation of the proportion of employees who are satisfied with the cleanliness of the breakrooms than stratification by gender is to ensure that the sample is proportional to the proportion of each campus to the whole population or workforce.

Step-by-step explanation:

A Convenience Sampling technique is a non-probability (non-random) sampling method and the participants are selected based on availability (early attendees).  The early attendees might be different from the late attendees in characteristics such as age, sex, etc.  Therefore, sampling biases are present.  All non-probability sampling methods are prone to volunteer bias.

Stratified sampling  is more accurate and representative of the population.  It reduces sampling bias.  The difficulty arises in choosing the characteristic to stratify by.

3 0
3 years ago
Solve for X (picture included)
Fynjy0 [20]

Answer:

x = 41

Step-by-step explanation:

(2x+20) + (2x-4) = 180 degrees

4x+16 = 180 degrees

4x = 164

x = 41

The two sides are supplementary and add up to 180 degrees.

6 0
3 years ago
Simplify. -22-10) - 92 ​
Rzqust [24]

Answer:

2944

Step-by-step explanation:

(-22-10)-92

(-32)-92

2944

Hope it is helpful for you please follow me

5 0
3 years ago
Other questions:
  • MATH HELP !!!! WILL BE MARKING BRAINLIEST
    14·2 answers
  • What is the greatest common factor for 12&amp;15
    10·1 answer
  • Please solve this qn.​
    7·1 answer
  • 3. Three less than twice a number is 15. What is the number?
    8·2 answers
  • Brain bought a used car for $3500. A month later he sold the car for $3000, a loss of $500. His selling price was approximately
    15·1 answer
  • What is the answer? Please slice and let me know ASAP<br> 4x - 3 ≤ -5
    10·1 answer
  • What is the solution to the system below? <br> -4x + 5y = 27<br> x - 6y = -2
    13·1 answer
  • For each question, choose Yes or No to tell if the expressions are equivalent. Show all work and steps.
    8·1 answer
  • 5,8,11,7,9 find the mad
    6·2 answers
  • Which number below is an integer but not a natural number?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!