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coldgirl [10]
3 years ago
13

In a factory that makes bolts, 20% of the bolts being made by a certain machine are defective. The factory owner wants to determ

ine the probability that two bolts in a row will be defective. He decides to use random numbers as a simulation tool. The following list shows 100 two-digit numbers that were randomly generated to represent two bolts in a row. If he uses the digits 0 and 1 to represent defective bolts, how many times were two bolts in a row defective?
0
33
3
18
Mathematics
2 answers:
Alla [95]3 years ago
8 0

Answer:

18

Step-by-step explanation:

cause the 18 would be 20% and step by step equations

ikadub [295]3 years ago
5 0

Answer:

the answer is 3

Step-by-step explanation:

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Deffense [45]

The answers are 3 and -13

You need to plug 3 and -5 into x

By doing this, you get :

12 - 3^2       and

12 - (-5)^2

those expressions equal

12 - 9

12 - 25

So you get

3

-13

8 0
3 years ago
5x^2-41x+8=0 please helpp
jeka94

Answer:

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

5

2

−

4

1

+

8

=

0

5x^{2}-41x+8=0

5x2−41x+8=0

=

5

a={\color{#c92786}{5}}

a=5

=

−

4

1

b={\color{#e8710a}{-41}}

b=−41

=

8

c={\color{#129eaf}{8}}

c=8

=

−

(

−

4

1

)

±

(

−

4

1

)

2

−

4

⋅

5

⋅

8

√

2

⋅

5

2

Simplify

3

Separate the equations

4

Solve

Solution

=

8

=

1

5

7 0
2 years ago
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denis-greek [22]

Answer:

Step-by-step explanation:

So what you do is

200 divided by 25.50 = about 8

7 0
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FromTheMoon [43]

Answer:

23.76

Step-by-step explanation:

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