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
Novay_Z [31]
3 years ago
5

-8x + 5x - 9 = 6 Can you help me?

Mathematics
1 answer:
Ann [662]3 years ago
3 0
Hope this helps sorry my writing is messy

You might be interested in
When doing blood testing for a viral infection, the procedure can be made more efficient and less expensive by combining partial
Serjik [45]

Answer:

0.1694 = 16.94% probability of a positive result for three samples combined into one mixture.

Step-by-step explanation:

For each test, there are only two possible outcomes. Either it is positive, or it is negative. The probability of a test being positive or negative is independent of any other test, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

The probability of an individual blood sample testing positive for the virus is 0.06.

This means that p = 0.06

If samples from three people are combined and the mixture tests negative, we know that all three individual samples are negative. Find the probability of a positive result for three samples combined into one mixture.

It will be positive if at least one of the tests is positive, that is:

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{3,0}.(0.06)^{0}.(0.94)^{3} = 0.8306

Then

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.8306 = 0.1694

0.1694 = 16.94% probability of a positive result for three samples combined into one mixture.

8 0
3 years ago
If the length of a rectangle is 5 feet and a height of 3 feet what is the area of the rectangle
choli [55]

Answer:

15feet squared

Step-by-step explanation:

Area= Length x height

= 5x3

= 15feet squared

4 0
3 years ago
Read 2 more answers
Write down the integer values that satisfy the inequality -5<_x<3
Naddik [55]

Answer:

(-4,-3,-2,-1,0,1,2)

Step-by-step explanation:

..........i hope it is............

8 0
3 years ago
Still helping my lil sister <br> Answer all three
wel

Answer:

3. D

4. C

5. I don't know sorry

Step-by-step explanation:

5 0
3 years ago
Factor the trinomial x^2-2x-35
Oliga [24]

Answer:

(x-7)(x+5)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Alan measures the circular floor of a tepee, then calculates that it has an area of 12.56 square yards. What is the floor's diam
    15·1 answer
  • What are the critical points for the inequality x^2-4/x^2-5x+6 &lt; 0? D is the correct Answer!
    7·2 answers
  • What is this triangle answer please ????
    10·1 answer
  • Find the co-ordinates of the point where the line y = 3x - 8 crosses the y-axis.​
    14·1 answer
  • Please help me <br> please help with just one question at least
    6·1 answer
  • Can any one help me with this?
    7·2 answers
  • A politician running for office called random phone numbers to see what proportion of the vote he could anticipate getting. From
    8·1 answer
  • Daniel has 12 cups of orange juice.
    10·2 answers
  • The first steps in writing f(x) = 3x2 – 24x 10 in vertex form are shown. f(x) = 3(x2 – 8x) 10 (startfraction negative 8 over 2 e
    6·2 answers
  • Write the standard form of the line that passes through the given points. Include your work for each step in your final answer.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!