Ask question

Ask question

All categories

3 years ago

12

Sample of 3 items is selected at random from a box containing 20 items of which 4 aredefective. find the expected number of defe

ctive items in the sample.

1 answer:

azamat3 years ago

6 0

That's 54 I think. 20x3=60-4=54

You might be interested in

Two of the volleyball team’s coaches and three of the players’ parents would like to

larisa [96]

Answer:

5x < 30

Step-by-step explanation:

coaches = 2x

parents = 3x

total time = under 30 mins

2x + 3x < 30

5x < 30

x < 6

4 0

3 years ago

Which graph represents the following piecewise defined function?

Viktor [21]

Answer: is B

Step-by-step explanation:

on edge 2020

3 0

2 years ago

Read 2 more answers

2(3 + 4x) = 8x + 6<br> How Many solutions?

Mrrafil [7]

Answer:

Infinite number of solutions

Step-by-step explanation:

$2(3 + 4x) = 8x + 6\\6 + 8x = 8x+6\\8x-8x=6-6\\0=0$

For any value of x, both equations are equal to each other because both sides are identical

4 0

2 years ago

Read 2 more answers

Explain in your own words why (x + y)2 ≠ x2 + y2. Provide a numerical example to illustrate.

bekas [8.4K]

Im not sure if you wrote this wrong because (x+y)2 does equal x2+y2. An example would be if x equals 3 and y equals 4 (3+4)2=(3)2+(4)2 (7)2=6+8 14=14.

6 0

3 years ago

Slope of points (2,2) and (-2,-2)

nika2105 [10]

SLope = (2 + 2)/(2 + 2) = 4/4 = 1

Answer

1

8 0

3 years ago