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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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Ms. Parker baked 6 dozen cookies. She gave 2 dozen cookies to her sister, 1 À dozen
Lyrx [107]

Answer:

Step-by-step explanation:

She gave out three dozen and she had six dozen so she has three dozen left three dozen 3 * 12 she has 36 cookies

6 0
4 years ago
Ella and her brother are driving between 2 cities that are 330 miles apart at a rate of 55 mph.How long will it take them to mak
jonny [76]

Answer:

6 hours

Step-by-step explanation:

1. Divide the total miles (330) by the speed (55)

  330/55 = 6

5 0
3 years ago
Leah's family traveled 5/7 of the distance to her grandmother’s house on Saturday. They traveled 1/2 of the remaining distance o
Paul [167]

Answer: 3/14

Step-by-step explanation:

They traveled 5/7 of the distance on Saturday and 1/2 of the remaining distance, 3/7 , on Sunday so...

(1/2)(3/7)= 3/14

Hope this helps :)

7 0
2 years ago
Read 2 more answers
3/4 − 2/5 in a fraction
Dennis_Churaev [7]

Answer:

7/10

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Y = 1.6x + 48
777dan777 [17]

Answer:

Step-by-step explanation:

If the equation of height of a man is modeled by the function y = 1.6x + 48 where;

y is the height of a man

x is the shoe size

To get the approximate shoe size for a man having a height of 60 inches, we will substitute y = 60 into the formula ans solve for x as shoen;

y = 1.6x + 48

60 = 1.6x + 48

1.6x = 60-48

1.6x = 12

x = 60/1.6

x = 7.5

x = 7 1/2

Hence the approximate shoe size for a man having a height of 60 inches is 7 1/2

7 0
3 years ago
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