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3 years ago

What is 1/10th of 2,871,000?

1 answer:

7 0

This is fairly simple. Divide 2,871,000 by 10 and that's your answer!

$\frac{2,871,000}{10} =287,100$

Also, since you're dividing by a factor of 10 (or in this case, 10) you can just take away as many places as are zeros in the number you're dividing from. This works for 10, 100, 1,000, 10,000, etc. In this case, since there is only one zero in 10 you only take away one place marking, which gives you 287,100.

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g Suppose a factory production line uses 3 machines, A, B, and C for making bolts. The total output from the line is distributed

Vladimir [108]

Answer:

The probability that it came from A, given that is defective is 0.362.

Step-by-step explanation:

Define the events:

A: The element comes from A.

B: The element comes from B.

C: The element comes from C.

D: The elemens is defective.

We are given that P(A) = 0.25, P(B) = 0.35, P(C) = 0.4. Recall that since the element comes from only one of the machines, if an element is defective, it comes either from A, B or C. Using the probability axioms, we can calculate that

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

Recall that given events E,F the conditional probability of E given F is defined as

$P(E|F) = \frac{P(E\cap F)}{P(F)}$ , from where we deduce that

$P(E\cap F) = P(E|F)P(F)$ .

We are given that given that the element is from A, the probability of being defective is 5%. That is P(D|A) =0.05. Using the previous analysis we get that

$P(D) = P(A)P(D|A)+P(B) P(D|B) + P(C)P(D|C) = 0.05\cdot 0.25+0.04\cdot 0.35+0.02\cdot 0.4 = 0.0345$

We are told to calculate P(A|D), then using the formulas we have

$P(A|D) = \frac{P(A\cap D)}{P(D)}= \frac{P(D|A)P(A)}{P(D)}= \frac{0.05\cdot 0.25}{0.0345}= 0.36231884$

3 0

3 years ago

Help i'll mark youuuuuuuuuuuuuu

almond37 [142]

Answer:

A. 525 feet

Step-by-step explanation:

If every hour their altitude increased by 135 then their would be an increase of 675 (135 × 5) after 5 hours. To find their altitude 5 hours earlier then you would subtract 675 from their current altitude. 1,200-675=525 feet

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2 years ago

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Ray Of Light [21]

Casey has been running for 3 days

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3 years ago

What is the truth value of (~p V q) ^ r if p is true, q is false, and r is true?

disa [49]

Answer:

i dont know im only getting points for this so i dont

fail and my mother hate me more for having to F's and to C's she wants all A's but pls dont get upset at me for not answering this pls it would be helpful

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Lilit [14]

Answer:

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Step-by-step explanation:

Plug in the answers for the equations.

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3 years ago