2 years ago

N ÷ 3 +n for n =6 can you guys help me

Mathematics

1 answer:

Ludmilka [50]2 years ago

8 0

Answer:

8 is your answer

Step-by-step explanation:

First plug in 6

6÷3+6

Then divide 6/3 which is 2

so 2+6 is 8

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X=-3
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Three students solve a challenge math problem. Every day, the number of students who solve the problem doubles. There are 384 st

attashe74 [19]

OK, so this is assuming we are considering that the first three kids to solve ARE NOT in the first day.

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Day 1 : 6

Day 2 : 12

Day 3 : 24

Day 4 : 48

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Day 6 : 192

Day 7: 384

So it should take 7 days or a week to solve all the problems.

The equation:

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2 years ago

For a certain type of copper wire, it is knownthat, on the average, 1.5 flaws occur per millimeter.Assuming that the number of f

mario62 [17]

Answer:

The probability that no flaws occur in a certain portion of wire of length 5 millimeters = 1.1156 occur / millimeters

Step-by-step explanation:

Step 1:-

Given data A copper wire, it is known that, on the average, 1.5 flaws occur per millimeter.

by Poisson random variable given that λ = 1.5 flaws/millimeter

Poisson distribution $P(X= r) = \frac{e^{-\alpha } \alpha ^{r} }{r!}$

Step 2:-

The probability that no flaws occur in a certain portion of wire

$P(X= 0) = \frac{e^{-1.5 } \(1.5) ^{0} }{0!}$

On simplification we get

P(x=0) = 0.223 flaws occur / millimeters

Conclusion:-

The probability that no flaws occur in a certain portion of wire of length 5 millimeters = 5 X P(X=0) = 5X 0.223 = 1.1156 occur / millimeters

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