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borishaifa [10]
3 years ago
6

35. A production facility employs 20 workers on the day shift, 15 workers on the swing shift, and 10 workers on the graveyard sh

ift. A quality control consultant is to select 6 of these workers for in-depth interviews. Suppose the selection is made in such a way that any particular group of 6 workers has the same chance of being selected as does any other group (drawing 6 slips without replacement from among 45). a. How many selections result in all 6 workers coming from the day shift
Mathematics
1 answer:
den301095 [7]3 years ago
3 0

Answer:

38760 selections result in all 6 workers coming from the day shift.

Step-by-step explanation:

The order in which the workers are chosen is not important, which means that we use the combinations formula to solve this question.

Combinations formula:

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)!}

a. How many selections result in all 6 workers coming from the day shift:

20 workers are employed on the day shift, so this is a combination of 6 from a set of 20.

C_{20,6} = \frac{20!}{6!(20-6)!} = 38760

38760 selections result in all 6 workers coming from the day shift.

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Answer:

12 sq. ft.

Step-by-step explanation:

A=1/2bh

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triangle 2: 1/2x4x4=8

4+8=12

8 0
3 years ago
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so, I need to just find the missing length, if you can, please explain the pythagorean theorem to find the missing side. I don't
ANTONII [103]

The surface area of the triangular prism is 828 in².

Solution:

Let the missing length of the triangle be x.

Using Pythagoras theorem,

In right triangle, square of the hypotenuse is equal to the sum of the squares of other two sides.

12^2+x^2=15^2

144+x^2=225

Subtract 144 on both sides of the equation.

x^2=225-144

x^2=81

Taking square root on both sides, we get

x = 9

The missing length of the triangle is 9 in.

Area of the front triangle = \frac{1}{2}\times 12\times 9

                                         = 54 in²

Area of the back triangle = \frac{1}{2}\times 12\times 9

                                         = 54 in²

Area of the sloping rectangle = 20 × 9

                                                 = 180 in²

Area of the back rectangle = 20 × 12

                                             = 240 in²

Area of the base rectangle = 20 × 15

                                             = 300 in²

Total area = 54 in² + 54 in² + 180 in² + 240 in² + 300 in²

                 = 828 in²

The surface area of the triangular prism is 828 in².

4 0
3 years ago
For her birthday, Kendra received a gift card in the mail from her grandparents. The gift card was worth $50. Kendra thought, si
scoundrel [369]

Answer:

$15

Step-by-step explanation:

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3 years ago
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Members of a lacrosse team raised $1793.50 to go to a tournament. They rented a bus for $757.50 and budgeted $64.75 per player f
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Answer:

757.5+64.75= 822.25

Step-by-step explanation:

8 0
2 years ago
Drag each label to the correct location on the image.
AlekseyPX
13 + (15) = 28


Because you always add the numbers in the parenthesis so 12 + 3 = 15 and 13 + 15 = 28
5 0
3 years ago
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