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3 years ago

What is 11 feet and 8 inches plus 2 feet and 9 inches

Mathematics

1 answer:

Agata [3.3K]3 years ago

7 0

Answer:

14 feet and 5 inches

Step-by-step explanation:

11 feet + 2 feet= 13 feet

9 inches + 8 inches = 17 inches

17 inches = 1 foot and 5 inches

13 + 1 = 14 feet

5 inches + 0 inches = 5 inches

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R is less than or equal to -9

Damm [24]

R<_-9

Hope this helps

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3 years ago

The number of failures of a testing instrument from contamination particles on the product is a Poisson random variable with a m

Mazyrski [523]

Answer:

The probability that the instrument does not fail in an 8-hour shift is $P(X=0) \approx 0.8659$

The probability of at least 1 failure in a 24-hour day is $P(X\geq 1 )\approx 0.3508$

Step-by-step explanation:

The probability distribution of a Poisson random variable X representing the number of successes occurring in a given time interval or a specified region of space is given by the formula:

$P(X)=\frac{e^{-\mu}\mu^x}{x!}$

Let X be the number of failures of a testing instrument.

We know that the mean $\mu = 0.018$ failures per hour.

(a) To find the probability that the instrument does not fail in an 8-hour shift, you need to:

For an 8-hour shift, the mean is $\mu=8\cdot 0.018=0.144$

$P(X=0)=\frac{e^{-0.144}0.144^0}{0!}\\\\P(X=0) \approx 0.8659$

(b) To find the probability of at least 1 failure in a 24-hour day, you need to:

For a 24-hour day, the mean is $\mu=24\cdot 0.018=0.432$

$P(X\geq 1 )=1-P(X=0)\\\\P(X\geq 1 )=1-\frac{e^{-0.432}0.432^0}{0!}\\\\P(X\geq 1 )\approx 0.3508$

3 0

3 years ago

True or false a rectangle with four right angles is a square

iragen [17]

False a rectangle could never be a square

8 0

3 years ago

Read 2 more answers

A random triangle is formed in some way, such that all pairs of angles have the same joint distribution. what is the correlation

Goryan [66]

Does it has a picture?

7 0

3 years ago

What measurement is equal to 6 kilograms

natima [27]

Answer:

in grams 6 kilograms is equal to 6000 grams or 13.2276 pounds

multiply 6 by each number don't forget to do the zero's.

4 0

3 years ago