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4 years ago

Is 3.172 a rational number? Or is it irrational?

Mathematics

2 answers:

babunello [35]4 years ago

8 0

Answer:

it is rational

Step-by-step explanation:

ollegr [7]4 years ago

8 0

Answer:

i don't think so

Step-by-step explanation:

Recurring decimals such as 0.26262626…, all integers and all finite decimals, such as 0.241, are also rational numbers. Alternatively, an irrational number is any number that is not rational. It is a number that cannot be written as a ratio of two integers (or cannot be expressed as a fraction).

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Nathan measured a line to be 7.4 inches long. If the actual length of the line is 7.2 inches, then what was the percent error of

Verdich [7]

Answer:

2.8%

Step-by-step explanation:

(7.4 - 7.2) / 7.2 =

0.2 / 7.2 =

2.7777777777778%

3 0

3 years ago

A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work pro

olchik [2.2K]

Answer:

0.756

Step-by-step explanation:

It is given that a machine has four components, A, B, C, and D.

$P(A)=P(B)=0.93, P(C)=0.95,P(D)=0.92$

If these components set up in such a manner that all four parts must work for the machine to work properly.

We need to find the probability that the machine works properly. It means we have to find the value of $P(A\cap B\cap C\cap D)$ .

If two events X and Y are independent, then

$P(X\cap Y)=P(X)\times P(Y)$

Assume the probability of one part working does not depend on the functionality of any of the other parts.

$P(A\cap B\cap C\cap D)=P(A)\times P(B)\times P(C)\times P(D)$

Substitute the given values.

$P(A\cap B\cap C\cap D)=0.93\times 0.93\times 0.95\times 0.92$

$P(A\cap B\cap C\cap D)=0.7559226$

$P(A\cap B\cap C\cap D)\approx 0.756$

Therefore, the probability that the machine works properly is 0.756.

7 0

3 years ago

Write the number pairs that relate the number of half dollar to the number of dimes

nekit [7.7K]

Answer:

0.10 + 0.10 + 0.10 + 0.10 + 0.10 equal to 5 dimes or a half of dollar.

Step-by-step explanation:

0.10 + 0.10 + 0.10 + 0.10 + 0.10 = 0.50 (half of a dollar)

6 0

3 years ago

Will ran four miles on his first day of training. The next day he ran one-third that distance. How far did he ran the second day

motikmotik

4/1 times 1/3 is 4/3 or 1 1/3 miles on the second day of training.

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3 years ago

Read 2 more answers

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Troyanec [42]

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4 years ago