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kotykmax [81]
3 years ago
15

Which statement is true?

Mathematics
1 answer:
xenn [34]3 years ago
4 0
       Just  B ) Every rational number is a real number.
Thank you. 
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A survey is made to determine the number of households having electric appliances in a certain city. It is found that 75% have r
Mashcka [7]

Answer:

The probability that a household has at least one of these appliances is 0.95

Step-by-step explanation:

Percentage of households having radios P(R) = 75% = 0.75

Percentage of households having electric irons P(I) = 65% = 0.65

Percentage of households having electric toasters P(T) = 55% = 0.55

Percentage of household having iron and radio P(I∩R) = 50% = 0.5

Percentage of household having radios and toasters P(R∩T) = 40% = 0.40

Percentage of household having iron and toasters P(I∩T) = 30% = 0.30

Percentage of household having all three P(I∩R∩T) = 20% = 0.20

Probability of households having at least one of the appliance can be calculated using the rule:

P(at least one of the three) = P(R) +P(I) + P(T) - P(I∩R) - P(R∩T) - P(I∩T) + P(I∩R∩T)

P(at least one of the three)=0.75 + 0.65 + 0.55 - 0.50 - 0.40 - 0.30 + 0.20  P(at least one of the three) = 0.95

The probability that a household has at least one of these appliances is 0.95

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3 years ago
AABC is a translation of AABC. What is the length of AC'?
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B.) 6?....
This seems too easy for it to be correct but I think it is B.
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Find the product: (0.45)•(0.008)
Leya [2.2K]

0.45x0.008=0.0036

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hope it helps

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What is the HCF of 14 and 21?
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The highest common factor is seven

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Sara has 23 more colored pencils than Dan. If s represents the number of colored pencils Sara has and d represents the number of
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The answer is 31 your welcome!!!!!!!!!!!!
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