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
timurjin [86]
4 years ago
13

Does anyone know how to work this.

Mathematics
2 answers:
FrozenT [24]4 years ago
8 0
The answer is b because the rest of the answer can't be it.
Shtirlitz [24]4 years ago
3 0
I think it's C.

Let me know!
You might be interested in
Company ABC produces widgets. They have found that the cost, c (x), of making x widgets is a quadratic function in terms of x. T
ElenaW [278]
<span>The fittable function seems to be 2 x^2+4 x+7. So C (167)</span>
5 0
3 years ago
Henry can write 5 pages of his novel in 3 hours. How many pages can he read in 8 hours
Neporo4naja [7]

Answer:40 pages in 8 hours

Step-by-step explanation:

5 times 8 is 40 3 times five is 15

6 0
3 years ago
Read 2 more answers
Two lines that intersect at 90 degree angles
Molodets [167]
That would be a right angle 
3 0
3 years ago
In which set are all fractions equivalent to - 2/3?
Hitman42 [59]
I would love to help you but you haven’t given the sets
3 0
3 years ago
Read 2 more answers
Five men and 5 women are ranked according to their scores on an examination. Assume that no two scores are alike and all possibl
serg [7]

Answer:

P(X=i) where i = 1,2,3,4,5,6,7,8,9,10 = 1/2, 5/18, 5/36, 5/84, 5/252, 1/252, 0, 0, 0, 0.

Step-by-step explanation:

X denotes the highest ranking achieved by the woman.

When X=1, the top ranked person is a female.

When X=2, the first person is a male and the second ranked person is a female.

Similarly, when X=3, the first two ranked persons are male and the third one is a female.

When X=4, the first three persons are male and the fourth one is a female.

When X=5, the first four persons are males and the fifth person is a female.

When X=6, the first five people are males and the sixth person is a female. The rest of the four people are also females since there are only five men in a sample space.

The probability for X=7, 8, 9, 10 is zero because there are only five men who can achieve the first five positions and the last highest rank that can be achieved by a woman is 6.

To compute the probabilities, we will use the formula:

<u>No. of ways a female can be ranked X/Total number of ways to rank 10 people</u>

Note that the total number of ways of ranking 10 different people is 10P10 or 10!

For X=1, the first position can be taken by any of the 5 women. The possible ways of the first person being a woman is 5C1. The rest of the 9 people can take any of the ranks. They can be ordered in 9P9 ways.

So, P(X=1) = (5C1)(9P9)/(10P10) = (5 x 362880)/(3628800) = 1/2

For X=2, the first rank must be taken by a male. The number of ways to arrange the first person as a male out of the 5 men can be calculated by 5P1. The second position must be taken by a female and rest of the 8 positions can be taken by any of the 8 people in 8P8 ways.

So, P(X=2) = (5P1)(5C1)(8P8)/(10P10) = (5 x 5 x 40320)/(3628800) = 5/18

For X=3, first two people must be men and the number of ways to arrange 2 out of 5 males at the first two positions is 5P2. The third position is a female. The rest of the 7 people can be ordered in 7P7 ways.

P(X=3) = (5P2)(5C1)(7P7)/(10P10) = (20 x 5 x 5040)/(3628800) = 5/36

P(X=4) = (5P3)(5C1)(6P6)/(10P10) = (60 x 5 x 720)/(3628800) = 5/84

P(X=5) = (5P4)(5C1)(5P5)/(10P10) = (120 x 5 x 120)/(3628800) = 5/252

P(X=6) = (5P5)(5C1)(4P4)/(10P10) = (120 x 5 x 24)/(3628800) = 1/252

P(X=7) = 0

P(X=8) = 0

P(X=9) = 0

P(X=10) = 0

7 0
3 years ago
Other questions:
  • In its January 25, 2012, issue, the Journal of the American Medical Association (JAMA) reported on the effects of overconsumptio
    13·1 answer
  • Find th mean of the integers -3,10,2,-13,-11
    5·1 answer
  • Christian reads 1/4 book every 2/3 week.<br><br> How many books does Christian read per week?
    5·2 answers
  • Prove the identity with steps. sin (x-y)/cos x sin y = tan x cot y -1​
    10·1 answer
  • Anybody happen to know this? Thanks
    5·1 answer
  • 8/180.0 i really need this anwser kid version for my kid pls and i would help but i also dont know
    7·1 answer
  • The cost of three bars of chocolate,, two oranges and one packet of mints is £3.14
    7·1 answer
  • Please solve will give BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINL
    14·2 answers
  • Write an equation of a line with s of slope of 7/8 and a y-intercept of 5/9 s
    13·2 answers
  • I dont get this please help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!