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MrRa [10]
3 years ago
6

A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identi

cal components, each with a probability of 0.25 of failing in less than 1,000 hours. The sub system will operate if any two of the four components are operating. Assume that the components operate independently. (Round your answers to four decimal places.) (a) Find the probability that exactly two of the four components last longer than 1,000 hours
Mathematics
1 answer:
irakobra [83]3 years ago
4 0

Answer:

do you have answer choice

Step-by-step explanation:

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Geometry help greatly needed, check photo for more information! <3
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Answer:

\huge\boxed{\sf x = 55\°}

Step-by-step explanation:

When a quadrilateral is inscribed in a circle, the opposite angles of it add up to 180 degrees.

Here,

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<u>Given that:</u> ∠DCB = 135° and ∠DAB = x

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Subtract 135 to both sides

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\rule[225]{225}{2}

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Step-by-step explanation:

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⇒9/12 

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