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
grandymaker [24]
3 years ago
8

Angle DCA is 120°. What percent of the circle's area does this section represent?

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0
A circle is 360

so we're going to set up a proportion

120        x
------ = ------
360       100

then cross multiply and divide

120 times 100=12000/360=33.3333333

so the answer is C. 33

I hope I've helped!
You might be interested in
A large but sparsely populated county has two small hospitals, one at the south end of the county and one at the north end. The
Readme [11.4K]

Answer:

Step-by-step explanation:

Probability distribution of this type is a vicariate distribution because it specifies two random variable X and Y. We represent the probability X takes x and Y takes y by

f(x,y) = P((X=x,Y=y) ,

and given that the random variables are independent the joint pmf isbgiven by:

f(x,y) = fX(x) .fY(y) and this gives the table (see attachment)

(b) the required probability is given by considering X=0,1 and Y =0,1

f(x,y) = sum{(P(X ≤ 1, Y ≤ 1) }

= [0.1 +0.2 ] × [0.1 + 0.3]

= 0.3 × 0.4

= 0.12

Now we find

fX(x) = sum{[f(x.y)]} for y =0, 1 and similarly for fY(y)= sum{[f(x,y)]} for x=0, 1

fX(x) = sum{[f(x,y)]}= 0.1+0.3

= 0.4

fY(y) = sum{[f(x.y)]} = 0.1 + 0.2

= 0.3

Since fY(y) × fX(x) = 0.4 × 0.3

= 0.12

Hence f(x,y) = fX(x) .fY(y), the events are independent

(c) the required event is give by: [P(X<=1, PY<=1)]

= P(X<=1) . P(Y<=1)

= [sum{[f(x.y]} over Y=0,1] × [sum{[f(x.y)]}, over X= 0, 1

= 0.4 × 0.3

= 0.12

(d) the required event is given by the idea that: either The South has no bed and the North has or the the North has no bed and the South has. Let this event be A

A =sum[(P(X = 1<= x<= 4, Y =0)] + sum[P(X =0 Y= 1 <= x <= 3)]

A = [0.02 + 0.03 + 0.02 + 0.02] + [0.03 + 0.04 + 0.02]

A = [0.09] + [ 0.09]

A = 0.18

Pls note the sum of the vertical column X=2 is 0.3

3 0
3 years ago
8h=28 how do you solve this
Rashid [163]

Answer:

h=3.5

Step-by-step explanation:

divide 28 by 8

hope I helped

5 0
3 years ago
Read 2 more answers
How many students are in Year 11?
worty [1.4K]

Answer:

308

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Ed has 30 sweets. The ratio of red sweets to yellow sweets is 2:3 How
Vesnalui [34]

Answer:

The ratio of red sweets to yellow sweets is 12.

3 0
3 years ago
Read 2 more answers
The distance between P and T on the coordinate grid is units. (Input whole numbers only.)​
nlexa [21]

Answer:ummm do you have a picture of the question?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • 3/5 with an exponent of 4
    7·1 answer
  • Triangle abc is a right triangle if side ac=7 and bc=10 whats the measure of side ab
    14·1 answer
  • As of 2016, New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New Yo
    10·1 answer
  • robert is in charge of the community swimming pool. each spring he drains is in order to clean it. then he refills the pool, whi
    11·1 answer
  • 76 fl oz = c<br> A 608<br> B.9 1/2<br> C.19 <br> D.9
    9·1 answer
  • 2 3/8" is to 4 1/4" as x is to 5"
    10·1 answer
  • Help me pls ill give extra points
    12·1 answer
  • Please solve: y = 2x + 5... X = 2
    10·2 answers
  • Please answer quick!!​
    11·2 answers
  • (30x^4 - 6x^3- 25x^2- 5x - 6) /(5x - 1)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!