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Ira Lisetskai [31]
2 years ago
5

Question 1 of 10

Mathematics
1 answer:
Liula [17]2 years ago
5 0

Answer:

B

Step-by-step explanation:

A P E X

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Help mayyy pleaseee and tyy
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Answer:

2x=-7y not sure tho just guessping probably wrong sorry

Step-by-step explanation:

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HURRY UP I AM DIENG I WILL GIVE BRAINLIESTThe area of the parallelogram below is ____ square meters.
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Answer:

42m

Step-by-step explanation:

First we need to find the base, which is 6 and the height which is 7. Then, multiply 6 and 7 to get 42. Then add your units, which are meters. So, 42m is your answer. I hope this helps! :)

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Match each value with the smallest number set that it belongs to.
bulgar [2K]
(-2)^3
12^0
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3 years ago
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'

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