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]
3 years ago
7

A TV set contains five circuit boards of type A, five of type B, and four of type C. The probability of failing in its first 500

0 hours of use is 0.03 for a type A circuit board, 0.04 for a type B circuit board, and 0.03 for a type C circuit board. Assuming that the failures of the various circuit boards are independent of one another, compute the probability that no circuit board fails in the first 5000 hours of use.
Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

0.903264

Step-by-step explanation:

Given that a TV set contains five circuit boards of type A, five of type B, and four of type C. The probability of failing in its first 5000 hours of use is 0.03 for a type A circuit board, 0.04 for a type B circuit board, and 0.03 for a type C circuit board.

Let A' = the event that A fails, B' =  B fails and C'= C fails.

Probability that no circuit board fails = Prob (A'B'C')

= P(A')P(B')P(C')  (since A,B, C are independent, their complements are independent

= (1-0.03)(1-0.04)(1-0.03)

= 0.903264

You might be interested in
Owning a small and successful business isn't easy! There is a monthly cost of shipping supplies and
andriy [413]

Answer:

C(x)=24,000+19,200x

Step-by-step explanation:

<u>Mathematical Modeling</u>

To model a real-life situation, a mathematical model can be constructed in such a way it accurately represents the variables measured in the system.

This problem requires to build a model for the yearly cost of a small and successful business.

The first data is the fixed monthly cost or the money the owner must pay regardless of the number of employees he hires. This cost includes shipping supplies and products for $2,000. To operate for a full year, the fixed cost is 12*$2,000=$24,000.

The other component of the cost function is the variable cost of x employees. Given each employee costs $1,600 each month, having x employees cost 1,600x each month. For a full year, the variable cost will be

12*1,600x=19,200x.

We finally form the total cost function:

\boxed{C(x)=24,000+19,200x}

7 0
3 years ago
Use the graph of the function g to answer the following. use correct formatting for your work
netineya [11]

9514 1404 393

Answer:

  • f(-2) = 4
  • f(1) = -5
  • D: [-3, ∞)
  • R: [-5,  11]

Step-by-step explanation:

You have marked the points on the graph corresponding to ...

  f(-2) = 4

  f(1) = -5

__

The domain is the horizontal extent, from x = -3 to +∞.

The range is the vertical extent, from y = -5 to +11 (inclusive).

6 0
3 years ago
Twenty-five percent of what number is 80?
tankabanditka [31]
The answer is 20
Hope this helps
3 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP 50 POINTS AND BRAINLIEST!!!!!!
Virty [35]

Answer:

The first shape is triangle; area of a triangle = 1/2*b*h

= 1/2*7*3

= 1/2*21

= 21/2

= 10.5

The second shape is rectangle; area of rectangle = l*b

= 7*3

= 21

Total area:

10.5+21

= 31.5

7 0
3 years ago
A rectangle with the dimensions of 2 feet
mojhsa [17]

Answer:

I think it could be no.A 4 feet by 16 feet

5 0
2 years ago
Read 2 more answers
Other questions:
  • If construction costs are $160,000 per kilometer, find the cost of building the new road in the figure
    13·1 answer
  • I'm confused with this problem for geometry, help!​
    9·1 answer
  • Evaluate. [120 + (12 ÷ 3 • 30)] ÷ 20 + 10^2
    13·1 answer
  • Describe a real-world situation that could be modeled by dividing two rational numbers.
    8·1 answer
  • Helpp!!<br> its due today plzz helppp :)
    15·2 answers
  • 4) The path of a satellite orbiting the earth causes it to pass directly over two
    7·1 answer
  • What is the length of a 50-inch TV that has a width of 27 inches?
    12·1 answer
  • A triangle has sides with length in centimeters that are consecutive even integers. Find the lengths if the perimeter is 186cm?
    15·1 answer
  • Identify the x-intercept point(s) of the parabola.
    9·1 answer
  • A boy walks 58 feet up a ramp having a 22.5 degree inclination. how high is he standing from the ground?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!