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
jek_recluse [69]
2 years ago
14

As part of a drug trial, a survey was done to gather information about the participants' experiences with side effects. Here are

the results.
•689 people participated in the drug trial in all

• 271 of the participants had dizziness

• 86 of the participants had both dizziness and fatigue, but didn't have anxiety

• 23 of the participants had both dizziness and anxiety, but didn't have fatigue

• 93 of the participants had fatigue, but had neither dizziness nor anxiety

• 62 of the participants had anxiety, but had neither dizziness nor fatigue

• 36 of the participants had dizziness, but had neither anxiety nor fatigue

•585 of the participants had at least one of these three side effects (dizziness, anxiety, fatigue)

Construct a Venn diagram illustrating these results. Then answer the question.​

Mathematics
1 answer:
Paraphin [41]2 years ago
8 0

The Venn diagram which represents the distribution of the participant in the drug trial is attached below. The Number of participants in the drug trial that has anxiety is 370

We can find the number of participants who has dizziness(D). Fatigue(F) and anxiety(A) can be calculated thus :

n(D) = n(D only) + (DnF only) + (DnA only) + (DnAnF)

271 = 36 + 86 + 23 + x

271 = 145 + x

x = 271 - 145

x = 126

  • n(DnAnF) = 126

<u>Number who has </u><u>atleast one of the three</u><u> side effects can be expressed thus</u> :

n(A only) + n(F only) + n(D only) + (DnF only) + (DnA only) + (DnAnF) + n(FnA only) = 585

36 + 23 + 62 + 86 + 126 + 93 + n(FnA) only = 585

  • n(FnA only) = 585 - 426 = 159

<u>Number of participants</u><u> who has </u><u>anxiety</u><u> can be calculated thus</u> :

n(DnAnF) + (DnA only) + n(FnA only) + n(A only)

126 + 23 + 159 + 62 = 370 participants

Therefore, 370 of the total participants has Anxiety.

Learn more : brainly.com/question/12570490

You might be interested in
Please help me! I will mark brainliest!
Vanyuwa [196]
49t^8 is the correct answer
8 0
3 years ago
Read 2 more answers
The center is (0, -3.2) and the radius is 2.2.
Radda [10]

Answer:

x^{2} +(y+3.2)^{2} =2.2^{2}

Step-by-step explanation:

(x-h)^{2} +(y-k)^{2} =r^{2}

The center is (h, k)

r is the radius

4 0
3 years ago
Let H be an upper Hessenberg matrix. Show that the flop count for computing the QR decomposition of H is O(n2), assuming that th
aleksley [76]

Answer:

Answer is explained in the attached document

Step-by-step explanation:

Hessenberg matrix- it a special type of square matrix,there there are two subtypes of hessenberg matrix that is upper Hessenberg matrix and lower Hessenberg matrix.

upper Hessenberg matrix:- in this type of matrix  zero entries below the first subdiagonal or in another words square matrix of n\times n is said to be in upper Hessenberg form  if ai,j=0

for all i,j with i>j+1.and upper Hessenberg matrix is called unreduced if all subdiagonal entries are nonzero

lower Hessenberg matrix:-  in this type of matrix  zero entries upper the first subdiagonal,square matrix of n\times n is said to be in lower Hessenberg form  if ai,j=0  for all i,j with j>i+1.and lower Hessenberg matrix is called unreduced if all subdiagonal entries are nonzero.

8 0
3 years ago
The perimeter of two triangles are 15 and 25. The area of the smaller triangle is 36. If the triangles are similar, what is the
DanielleElmas [232]

Answer:

60

Step-by-step explanation:

Set up a ratio problem

15/25 = 36/x

15x = 900

x = 60

6 0
2 years ago
Solve for x pls .............................................................................
Eddi Din [679]
There is no solution
Hope this helps :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • In a dance competition, a participant has to score a total of at least 30 points in the first four rounds combined to move on to
    10·2 answers
  • Write 0.4 as a fraction in simplest form
    5·2 answers
  • om invests $6249 in an account that pays 4.15% interest per year for 4 years. How much simple interest will he earn? Round your
    7·1 answer
  • How do you write six times the quantity two x plus three y with numbers??
    8·1 answer
  • Sigma motors has assets of $5,000,000, liabilities of $1,200,000, and retained earnings of $1,500,000. what is the value of the
    12·1 answer
  • What price do farmers get for their watermelon crops? In the third week of July, a random sample of 37 farming regions gave a sa
    5·1 answer
  • Rename the number 850,000
    12·1 answer
  • What is the answer?! *PLEASE HELP ME WITH THIS QUESTION*
    14·1 answer
  • A bakery made 26 cherry pies, using 115 cherries for each pie. They threw away 36 cherries that were bad. If they used all the c
    12·1 answer
  • PLEASE 10 MIN LEFT: right a equation for each slope
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!