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katovenus [111]
4 years ago
14

The principle of redundancy is used when system reliability is improved through redundant or backup components. Assume that a​ s

tudent's alarm clock has a 17.417.4​% daily failure rate. If the student has two such alarm​ clocks, what is the probability that they both fail on the morning of an important final​ exam?
Mathematics
1 answer:
seropon [69]4 years ago
7 0

Answer:

Probability that both such alarms fail is 0.03027

Step-by-step explanation:

Probability the alarm fails = 0.174       (this is calculated by dividing the percentage by 100 like:   17.4/100)

Probability that both such alarms fail = 0.174 * 0.174 = 0.03027

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What would my final balance be if I put $650 in the bank for 60 months with an interest rate of 6%?
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It depends on the terms of the account.

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Lindy puts £ 78 into an account which pays inrerest at a rate of 5% per anum. What will be the simple interest after 6 years .wh
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Answer:

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5 0
3 years ago
Read 2 more answers
The exact value of cos 13pi/8 is
Naily [24]

Answer:

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Step-by-step explanation:

We have, Cos (13pi/8)

Since 13pi/8 can be shown as 3pi/2 < 13pi/8 < 2pi

Hence 13pi/8 lies on fourth quadrant.

In fourth quadrant cosine will be positive.

Cos (13pi/8) = cos(3pi/2 + pi/8)

applying formula cos(A+B) = cos A cosB - sinAsinB

i.e Cos(3pi/2 + pi/8) = cos(3pi/2)cos(pi/8) - sin(3pi/2)sin(pi/8)

∵ Remember cos(3pi/2) =0 , sin(3pi/2) = -1

     Cos(3pi/2 + pi/8) = 0 cos(pi/8) - (-1)sin(pi/8)

     Cos(3pi/2 + pi/8) = 0  + 0.3826

      Cos(3pi/2 + pi/8) = 0.3826

Hence we got Cos(13pi/8) = 0.3826                          

6 0
3 years ago
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Answer:

Reflexive property

Step-by-step explanation:

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3 0
3 years ago
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