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
BARSIC [14]
3 years ago
11

A computer programm contains one error.in order to find the error, we split the program in to blocks and test 2 of them,selected

at random.let X be the numer of errors in these blocks.compute E(x)...
Mathematics
1 answer:
kolezko [41]3 years ago
5 0
If the E(X) = 1 then that means it has a 100% which is incorrect.
Each block has an equal probability to contain the error so 1/3 because you choose 2/6.
You might be interested in
Apples: $(2x) per pound
Ludmilka [50]

Answer:

Shopper spend $3 on Apples, $4 on Grapes and $3.5 on Oranges

Step-by-step explanation:

Cost of one pound of Apple = $2x

Cost of one pound of Grapes = $(6x-5)

Cost of one pound of Oranges = $(x+2)

A shopper purchases one pound each of  apples, grapes, and oranges and spends  $10.50.

It can be written as: 2x+6x-5+x+2=10.50

We need to find how much the shopper spend on each fruit.

First we need to find value of x by solving equation

2x+6x-5+x+2=10.50

Solving:

2x+6x+x+2-5=10.50\\9x-3=10.50\\9x=10.50+3\\9x=13.5\\x=\frac{13.5}{9}\\x=1.5

The value of x is: x=1.5

Now finding cost of one pound each fruit by putting x=1.5

Cost of one pound of Apple = $2x = 2(1.5) = $3

Cost of one pound of Grapes = $(6x-5) = (6(1.5)-5)= $4

Cost of one pound of Oranges = $(x+2)=(1.5+2)=$3.5

So,

Cost of one pound of Apple  = $3

Cost of one pound of Grapes = $4

Cost of one pound of Oranges = $3.5

So, shopper spend $3 on apples, $4 on Grapes and $3.5 on Oranges

3 0
2 years ago
What does 4(m-2)=2(m-9) equal
marshall27 [118]

Answer:

m = -5

Step-by-step explanation:

Simplify both sides of the equation.

4(m−2)=2(m−9)

(4)(m)+(4)(−2)=(2)(m)+(2)(−9)(Distribute)

4m+−8=2m+−18

4m−8=2m−18

Subtract 2m from both sides.

4m−8−2m=2m−18−2m

2m−8=−18

Add 8 to both sides.

2m−8+8=−18+8

2m=−10

Divide both sides by 2.

2m/2 = -10/2

m = -5

3 0
3 years ago
The pool at the apartment building is 30 feet long, 20 feet wide, and 5 feet deep. It has been filled 4 feet deep. How many more
egoroff_w [7]
I think the answer is A 600 cubic feet
6 0
3 years ago
El cuerpo oficial de bomberos de una ciudad importante está desarrollando un análisis
artcher [175]
Sbsbshshgsdhshshsbhshs
6 0
2 years ago
Can the triangles be proven similar by AA?
vekshin1

Answer:

No, similar triangles cannot contain a pair of parallel lines. Yes, because || . Yes, because ∠QUR ≅ ∠TUS (vertical angles) and ∠R ≅ ∠S (alternate interior angles).

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • It is an odd number.
    9·1 answer
  • Tara walks 2 miles in 30 minutes At this rate,how far can Tara walk in 45 minutes?​
    9·1 answer
  • Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round y
    9·1 answer
  • Haley had 56 dollars she spent 5/8 of her money on a new shirt how much money did she have left after buying the shirt
    8·1 answer
  • A contractor purchases 22 doors and 9 were brown. If he purchased 1,078
    14·1 answer
  • Given the functions f(n) = 11 and g(n) = −2(n − 1), combine them to create an arithmetic sequence, an, and solve for the 31st te
    7·1 answer
  • What is the volume of the prism
    7·1 answer
  • The point P(-2,-5) is rotated 90° about the origin, and then the image is reflected across
    9·1 answer
  • Prove that the coordinate (a,b) (b,a) are inverses of one another.
    12·1 answer
  • Solve 2x^2-3x-5=0 with the quadratic formula please and have a bless day
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!