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AysviL [449]
3 years ago
5

Explain how to determine the

Mathematics
1 answer:
Paladinen [302]3 years ago
3 0

Answer: Compound probability is equal to the probability of the first event multiplied by the probability of the second event

HOPE THIS HELPS

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The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, bu
Mariulka [41]

Answer:

Probability that detector B goes off is '0.615'

Step-by-step explanation:

Given that:

1) Probability that detector A goes off and detector B does not go off is 0.25.

2)Probability that detector A does not go off is 0.35.

3)Probability that detector A  goes off is (1-0.35)=0.65

Assuming that

Probability that detector B goes off is 'p' Hence the probability that detector B does not goes off  is (1-p)

Thus the probability that detector A goes off and detector B does not go off is  product of the individual probabilities

P(E)=0.65\times (1-p)\\\\0.65\times (1-p)=0.25\\\\0.65-0.65p=0.25\\\\0.65-0.25=0.65p\\\\\therefore p=\frac{0.40}{0.65}=0.615

Probability that detector B goes off is '0.615'

5 0
3 years ago
Plz help plz I am already failing I dont want to fail more
Gnom [1K]

Answer:

B is the closet to pi hsiebfjwjgsbe9fbe

7 0
3 years ago
I need help! please!
mamaluj [8]

Answer:

-  \frac{1}{3}

Step-by-step explanation:

The only thing important in this question in the original equation is the slope, which is 3, the multiplyer for x. To find the opposite slope follow the steps below.

The first step is to make the original slope into a fraction.

\frac{3}{1}

Then flip the numerator and denominator.

\frac{1}{3}

Now multiply this value by -1.

\frac{1}{3}  \times ( - 1) =  -  \frac{1}{3}

There is the opposite slope of 3.

7 0
2 years ago
Add Polynomials<br> (3y + y^3– 5) + (4y– 4y + 2y^3+ 8)
nexus9112 [7]

Step-by-step explanation:

Please refer to the attachment

8 0
3 years ago
Determine if b = -3 is a solution to 4b - 6 = -18. Be sure to show all of your work.
MakcuM [25]

Given b equals -3, determine if it is a solution to 4b - 6 = - 18.

So, we have our given which is b = -3, and we are asked to determine if it a solution to the above equation.

To do this, we can plug -3 in for b and see if it works out.

Work:

Plug in -3 for b.

4(-3) - 6 = - 18

-12 - 6 = -18

-12 - 6 = - 18

Thus, b = -3 is a viable solution for the equation of 4b - 6 = -18.

6 0
3 years ago
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