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Tomtit [17]
4 years ago
11

A certain shop repairs both audio and video components. Let A denote the event that the next component brought in for repair is

an audio component, and let B be the event that the next component is a compact disc player (so the event B is contained in A). Suppose that P(A)?

Mathematics
2 answers:
zvonat [6]4 years ago
7 0

Answer:

Incomplete question

Complete question:

A certain shop repairs both audio and video components.

Let A denote the event that the next component brought in for repair

is an audio component, and let B be the event that the next

component is a compact disc player (so the event B is contained in

A). Suppose that P(A)= 0.6 and P(B) =0.05. What is P(B|A)?

Answer:

P(B|A)= 1/12 ≈ 0.083.

Step-by-step explanation:

Since B is contained in A, then A∩ B = B and

P(A|B) =

P(A ∩ B)/P(A)

P(B)/P(A)

=0.05/0.6

= 1/12 ≈ 0.083.

tigry1 [53]4 years ago
4 0

Answer:

The question continues ; Suppose that P(A) = 0.625 and P(B) = 0.05, what is P(B|A)

Step-by-step explanation:

The steps are as shown in the attachment

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Elena L [17]

Answer:

m\angle ECB+m\angle EFB=180

m\angle CDB\cong m\angle EDF

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

Step-by-step explanation:

From the diagram, quadrilateral BCEF is a cyclic quadrilateral.

Opposite angles if a cyclic quadrilateral sum up to 180°

m\angle ECB+m\angle EFB=180

The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent.

m\angle CDB\cong m\angle EDF

Also sum of angles in triangle CBD is 180°.

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

6 0
3 years ago
Please answer fast
nalin [4]

Answer:

  • 117°

Step-by-step explanation:

Sum of the interior angles of any triangle is 180°

<u>Let the third angle measure is x. Then the sum of angles is:</u>

  • x + 11° + 52° = 180
  • x + 63° = 180°
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6 0
3 years ago
Read 2 more answers
A band director needs to purchase new uniforms. The ratio of small to medium to large uniforms is 3 : 4 : 6. A: If there are 260
Salsk061 [2.6K]

Answer:60

Step-by-step explanation:

3:4:6

Add:

3+4+6=13

3:4:6=13

?:?:?=260

Divide:

260/13=20

Multiply 3 and 20:

60

SO there are 60 small uniforms

8 0
3 years ago
Write a multiplication equation that represents the question how many 3/8 are in 5/4​
Troyanec [42]

Answer:

3 1/3.

Step-by-step explanation:

Divide 5/4 by 3/8. (5/4) / (3/8) = 5/4 * 8/3 = 40/12 = 10/3 or 3 and 1/3.

7 0
3 years ago
Solve by completing the square:
azamat

Answer:

a

Step-by-step explanation:

Given

x² + 2x - 3 = 0 ( add 3 to both sides )

x² + 2x = 3

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(1)x + 1 = 3 + 1

(x + 1)² = 4 ( take the square root of both sides )

x + 1 = ± \sqrt{4} = ± 2 ( subtract 1 from both sides )

x = - 1 ± 2

Thus

x = - 1 - 2 = - 3

x = - 1 + 2 = 1

5 0
4 years ago
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