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
Vadim26 [7]
3 years ago
15

A circle with circumference 20 has an arc with 72 degree central angle what is length of the arc

Mathematics
1 answer:
Debora [2.8K]3 years ago
4 0

Answer:

<h2>4</h2>

Step-by-step explanation:

<em>Look at the picture.</em>

<em />

<em>At the beginning we have to calculate what part of the angle 360° is the given angle 75°.</em>

<em />\dfrac{75}{360}=75:360=0.2<em />

<em>The same part of the circumference of the circle is the arc defined by this central angle.</em>

The circumference <em>C = 20</em>.

Therefore

x=0.2\cdot20=4

You might be interested in
-8(-8b-6)=-6b-22 <br> Can someone PLEASE help me I don't understand this at all!!
lina2011 [118]

Do you know the distribution property? I can't explain why you have to do that, but google search it. the number that is outside of the parenthesis will be multiplied in <em>each </em>of the number in the parenthesis.


-8(-8b-6) = -6b-22

the distribution property will look like this

-8 * -8b = 64b

-8 * -6 = 48

(two negative numbers make a positive)

now th equation will look like this

64b + 48 = -6b-22

you must have the variable to one side of the equation. That means you need to subtract one of them to the other side or add it depending if the number is positive or negative. For example, you can add 6b to 64b (the opposite operation of -6b is addtion making -6b a positive number) so 64b + 6b - 70b


70b + 48 = -22

solve b!

7 0
3 years ago
6000 and 200 feet greater than less than or equal to 1 mile and 900 feet
dedylja [7]
6000 and 200 feet is greater than 1 mile and 900 feet
6 0
3 years ago
(X-2)2/4+(y+5)2/9=1 what is the length of major axis of this equation?
makvit [3.9K]
Step 1: Add (-1)/9 to both sides.<span><span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>+<span>19</span></span>+<span><span>−1</span>9</span></span>=<span>1+<span><span>−1</span>9</span></span></span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>=<span>89</span></span>Step 2: Add (-2)/9y to both sides.<span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>+<span><span><span>−2</span>9</span>y</span></span>=<span><span>89</span>+<span><span><span>−2</span>9</span>y</span></span></span><span><span><span>12</span>x</span>=<span><span><span><span>−2</span>9</span>y</span>+<span>89</span></span></span>Step 3: Divide both sides by 1/2.<span><span><span><span>12</span>x</span><span>12</span></span>=<span><span><span><span><span>−2</span>9</span>y</span>+<span>89</span></span><span>12</span></span></span><span>x=<span><span><span><span>−4</span>9</span>y</span>+<span>169</span></span></span>Answer:<span>x=<span><span><span><span>−4</span>9</span>y</span>+<span>16<span>9</span></span></span></span>
7 0
3 years ago
City of Ann Arbor wishes to form a Green Club, a group of people devoted to green technology. The club is open to all, and enrol
IgorLugansk [536]

Answer:

1820

Step-by-step explanation:

X the size of the club will follow negative binomial distribution with probability of success p and number of failures r

p = 364/365, r = 5

hence E[x] = pr/(1-p) = 364/365 x 5 /(1/365) = 1820

6 0
3 years ago
Factor completely. 9x2 + 9x -28
Maru [420]
9 x^{2}  + 9x -28&#10;
(3x+ 7) (3x-4)
4 0
3 years ago
Other questions:
  • Deivn brought his snail collection to school he has 10 snail how could he put them into 2 tank so two class could see them write
    13·1 answer
  • Graph the function. compare the graph with the graph of y = (1/8)^x<br><br>How do I do this one?
    11·1 answer
  • Solve S = 180(n – 2) for n.
    10·1 answer
  • Whats the name of the geom<br>etric figure
    10·1 answer
  • What is the length of BC?<br>9 units<br>11 units<br>15 units<br>16 units​
    13·1 answer
  • MARKING BRAINLIEST ..Please
    11·2 answers
  • Which of the following statements are true?
    15·1 answer
  • What single percentage change is equivalent to a 14% increase followed by a 11% decrease?
    12·1 answer
  • Find the gradients of the lines A and B. <br> a) Gradient of A is __ <br> b) Gradient of B is __
    5·1 answer
  • The area of a circular table is 22511 in2.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!