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
const2013 [10]
3 years ago
5

Pls help,its for my sister

Mathematics
1 answer:
dimaraw [331]3 years ago
7 0
Everything about number one is because it's a half of circle so its area = 1/2 ¶r^2 and its perimeter = ¶r

You might be interested in
Lung cancer is the leading cause of cancer-related deaths in the United States. Researchers examined the idea of testing all Med
Sidana [21]

Answer:

a. P(C) = 0.03

   P(test+ | C) = 0.89

   P(test- | no C) = 0.93

b. Tree diagram is attached.

c. P(test+) = 0.0946

d. P(C | test+) = 0.2822  

Step-by-step explanation:

a. Let C denote Lung Cancer The probability that a heavy smoker will develop lung cancer is 3% i.e. 0.03.

If lung cancer is present, the CT scan result comes out to be positive 89% of the times while if lung cancer is not present, the results are negative 93% of the time. Let test+ denote that the test result is positive and test- denote that the test result is negative.

P(C) = 0.03

P(test+ | C) = 0.89

P(test- | no C) = 0.93

b. The first pair of branches represent whether the individual has cancer or not.

P(C) = 0.03

P(no C) = 1 - 0.03 = 0.97

The second pair of branches will represent if the test result came out positive or negative.

For patients with cancer, P(test+) = 0.89, P(test-) = 1 - 0.89 = 0.11

For patients with no cancer, P(test -) = 0.93, P(test+)= 1 - 0.93 = 0.07.

The tree diagram is attached as an image file.

c. P(test+) = P(C)*P(test+| C) + P(No C)*P(test+| No C)

                                = (0.03)(0.89) + (0.97)(0.07)

                                = 0.0267 + 0.0679

    P(test+) = 0.0946

d. P(C | test+) = P(C ∩ test+) / P(test+)

                       = P(C)*P(test+ | C) / P(test+)

                       = (0.03)*(0.89) / 0.0946

    P(C | test+) = 0.2822  

7 0
3 years ago
What is the measurements of the circle?​
abruzzese [7]

Answer:

xw= 60°

ym=60°

mw=120°

Step-by-step explanation:

Angles on a straight line add up to 180°. Therefore 180-78+42°=60°

Opposite angles are equal. Therefore 60°=60°

Angles in a circle = 360° Therefore 78°+42°+60°+60°+120°=360°

8 0
3 years ago
In the early months of some year one site added 0.2 million new accounts everyday. At this rate, how many days would be needed t
WITCHER [35]
60 days, I think. Sixty times zero point two is twelve.


3 0
3 years ago
Solve the following for the specified variable<br><br> Z=s/2(P+p); for P
lapo4ka [179]

Answer:

\boxed{\sf P = \frac{2Z}{s} - p}

Step-by-step explanation:

\sf Solve \ for \ P: \\ \sf \implies  Z = \frac{s}{2} (P + p) \\ \\ \sf Z = \frac{s}{2} (P + p) \ is \ equivalent \ to \ \frac{s}{2} (P + p) = Z: \\ \sf \implies \frac{s}{2} (P + p) = Z \\ \\  \sf Divide \ both \ sides \ by \ \frac{s}{2} : \\ \sf \implies P + p = \frac{2Z}{s} \\ \\ \sf Substrate \ p \ from \ both \ sides: \\ \sf \implies P = \frac{2Z}{s} - p

6 0
3 years ago
Choose the correct answers !!!!!!!!!! Will mark Brianliest !!!!!!!!!! Please helppp !!!!!!!!!!!!!!!!
kondaur [170]

Answer:

non the avibe

Step-by-step explanation:

xu x6y8z9vtgkxih 174374t6fivH tin s6d

3 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation that you can use to solve for x
    9·2 answers
  • If cardboard costs $0.05 per square inch, how much would it cost to make a box with a surface area of 384 sq inch? How would you
    15·2 answers
  • What is the midpoint of a segment whose endpoints are (–4, –2) and (5, 1)?
    8·1 answer
  • BRAINLIESTT ASAP! PLEASE HELP ME :)
    5·1 answer
  • In the first quadrant you start at 3,7 and move 3 units down what is the point you end up with
    14·1 answer
  • Sally begins hiking at an elevation of 224 feet. Then, she descends 131 feet
    9·1 answer
  • Your bank account has -$15 in it. you deposit $5 per day
    10·1 answer
  • Does anyone know the answer?
    9·2 answers
  • . A factory produces 32 tables in an 8-hour day. Calculate how many
    15·1 answer
  • What is the sum? startfraction x over x 3 endfraction startfraction 3 over x 3 endfraction 2 over x 3 endfraction five-thirds st
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!